In order to welcome the arrival of Xia Xue, Liu Mei made a hearty meal. However, Xia Xue, who just arrived at the new home, said something bitter and harsh, and even read out the prepared banderies at the dinner table, which resulted with a disappointing meal. Liu Mei had to make concessions for the sake of family harmony, and Liu Xing and Xia Yu also took the opportunity to claim rights. Xia Xue’s style of doing things did not make her parents angry. In order to find out her parents’ attitude, Xia Xue came home with a very avant-garde “wild boy”, claiming to be her boyfriend, deliberately confronting her parents.

Xia Donghai came forward to stop Xia Xue’s early love, but Xia Xue struck back about his divorced and remarried. Xia Donghai was angry and was persuaded by Liu Mei. Liu Mei told the Xia Donghai with her own experience with Hu Yitong. Sometimes, the attitude of parents will be counterproductive. Xia Donghai decided to take a roundabout way, starting from Xia Xue’s boyfriend. Finally, the “wild boy” told them very shocking news — he was the childcare hired by Xia Xue because Xia Xue was afraid of being affected by his stepmother. He deliberately clashed with his parents, and Xia Donghai and his wife do not to know whether to laugh or cry .

Liu Xing took photos of the spring trip last month for everyone to see, but there is no Xia Xue. Xia Xue, because of jealousy, took out his previous photos with the East China Sea and the mother. Xia Donghai is very unhappy that Xia Xue did this, but he could not convince Xiao Xue to put away the photos. Liu Xing saw Xiaoxue put out such a photo, so he took out the pictures of Hu Yitong and Liu Mei. Xia Yu also came to join in the fun and make a mess of the family. The two couples had to set up a showroom at home, dedicated to the photos of everyone.

The school is going to open a parent meeting. To be a good father, Xia Donghai deliberately got off work early to have the parent meeting for Liu Xing. After returning, under the pleading of Liu Xing and his grandmother, Liu Xingyu did not reflect Liu Mei with the bad things that Lix Xing did. Later, Liu Mei knew that Liu Xing did something bad and was stopped beating Liu Xing by Xia Donghai and grandmother. Xia Donghai must personally teach Liu Xing a lesson. He hit the sandbags and made Liu Mei and grandmother think that he was beating Liu Xing. They believed it and shouted outside to stop him, and then Xia Donghai and Liu Xing intimately stalked back.

To write an essay, Xia Xue began to study the little mouse. She not only let Liu Mei accompany her to watch "The Elf Mouse Brother," but also bought a small mouse to raise at home. Since childhood, Liu Mei, who is afraid of mice, has suffered hardships and was scared by mice. Worried and frightened, Liu Mei held a cat to calm herself. Xia Xue believes that stepmother is right against herself. Xia Yu and Er Pang let the white mouse fight the cat, and the cat ate the rat. Xia Xue wrongly thinks that Liu Mei did what Xia Yu did, and she is furious with Liu Mei. Later, the truth came out, and both of them had to give each other a gift. As a result, Liu Mei bought a white mouse for Xia Xue, and Xia Xue bought a cat for Liu Mei.

Liu Xing wants to complete an essay titled "My Savage Father," so he has to look at what his stepfather Xia Donghai is doing. Liu Xing is so naughty and asks Xia Donghai for anger, but Xia Donghai is mild and not savage at all. Xiu Xing can't achieve the goal. At this time, Liu Xing’s father, Hu Yitong, tried to borrow money from the Xias, and Xia Donghai readily agreed. When they were drinking, they had a dispute and glared at each other. Liu Xingxi looked out, and he could finish the composition. At this time, Sheng Chao (Liu Xing's classmate) came to inform Liu Xing that the "savage" in the title is quoted.

Xia Xue was fascinated by the life of wild orangutans and escaped classes for it. Xia Yu came to inform, and Donghai and Liu Mei, who are fathers and mothers, are very anxious. Later they learned that their daughter just wanted to study the orangutan. To cater to her daughter's preferences, Liu Mei studied a strong knowledge of the orangutans. However, Xia Xue’s interest has suddenly changed to Astronomy, but Liu Mei has already prepared an orangutan showroom for Xia Xue. After Xia Xue looked at the exhibition room, she rushed out and hugged Liu Mei and said, "Mom, thank you!"

After Liu Xing helped the teacher find the car key, he imagined that he could be a detective, began to study the Complete Works of Sherlock Holmes, and claimed to be "Sherlock Xing". He almost analyzed everything and others in the family felt bored of him. Because Xia Yu damage other's toy, he secretly takes some things from home to sell, Liu Mei mistakenly believed that Liu Xing deliberately created "crime" to analyze and prove himself. After reconnaissance, Liu Xing pointed out that the real criminal was Xia Yu, and Liu Xing asked Liu Mei to restore his reputation.

Xia Xue's recent abnormal performance has made his father Donghai very worried. He is thinking of "buying" Liu Xing to track Xia Xue. Liu Xing, who was secretive in action, caught the attention of his mother, Liu Mei. She also "buy" Xia Yu to track Liu Xing. Various news began to spread to the ears of Xia Donghai and Liu Mei. So the husband and wife separately talked to Xia Xue and Liu Xing, and the two children found themselves being followed, and they were very upset. The strange relationship of the awkward atmosphere finally made Xia Xue unbearable and confessed his secret to everyone.

Xia Donghai is busy modifying his 20 years of hard work – the script "The Love of Wildebeest." At the same time, Xia Xue is busy with his own "Elves Pig Little Brother." As a result, Xia Xue was not recognized by the small actors as a director but instead was about to be changed. After Xia Donghai just comforted her daughter, he learned that his script was not approved by the buyer. He was very angry. The family advised him. Later, Xia Xue changed the show to "The Story of the Wildebeest" and succeeded. At this time, the buyer (Lao Shang) ran to the door and wanted to buy the script of Xia Donghai.

Liu Xing did not like to drink milk and poured the remaining half of the cup into Xia Yu's cup. Xia Yu therefore wheat his pants. Liu Xing used the story of Kong Rong to excuse for himself. The next day, Xia Yu poured milk into Liu Xing's football shoes. Xia Donghai helped Liu Xing dry and told Liu Xing that Beckham's soccer shoes used to soak in milk. Liu Xing said that he wore the milk-smelled football shoes and regarded himself as David Beckham. He scored three goals in a single game and beat the other side by 5:0. The two brothers were happy to dance. Liu Mei decided to change Liu Xing's milk to soy milk.

Liu Mei was kind enough to care for a patient in the hospital, but the patient's condition suddenly deteriorated, causing the patient's family to argue and retaliate against her. The hospital let Liu Mei stay home for several days to avoid the conflict. Xia Donghai was very worried about Liu Mei and his family. He asked the children to be vigilant and to guard against strangers who appeared at the front door. At the same time, they also proposed some preventive measures and emergency plans. As a result, the children were all arrogant and made a lot of jokes. When Xia Donghai felt that he was over-preventing and announced the lifting of the alarm, the patient’s family suddenly came to apologize.

Liu Xing failed to borrow shoes from Xia Xue and thus stool them. Xia Xue sprained her foot in the physical class and blamed Liu Xing for wearing her shoes. Liu Xing did not want to apologize and was punished by Liu Mei. The physics teacher came to visit and said that the reason for Xia Xue’s injury was the lack of exercise. Liu Xing, therefore, said that Xia Xue had planted him, and he wanted an apology from Xia Xue.

Xia Donghai told everyone that he would get a batch of remuneration. The excited couple agreed to the request of three children to add "big items".

Liu Mei’s former patient Aunt Pang now becomes Xia’s neighbor and asks Xia Xue to help her daughter Jia Jia study.

Liu Mei’s birthday is coming, and Donghai gives her a gift. The three children are also preparing gifts, Liu Mei thought these gifts were for her.

Xia Donghai was invited to be the director of a TV series. He was full of confidence at first but ashamed later because the producer hyped him.

Grandmother's birthday is coming, and the Donghai and Liu Mei found that the gift they bought was broken.

Xia Yu was teased by Er Pang who taught him to use "stupid" to praise other. Duo Duo cried and reported it to Teacher Ma. Teacher Ma decided to go visit the Xias.

Xia Xue wants to see someone she met online, causing Liu Mei’s panic.

Xia Donghai came back on a business trip and was trapped in a lift with a beautiful young woman. The mobile phone had no signal, so he and could not contact her family.

Donghai explained to Liu Mei, but he could not get Liu Mei’s understanding. She forced Donghai to find a woman who kissed him in the elevator.

Liu Mei promised Liu Xing to reward him with an MP3 as long as he took the first place. Liu Xing took an essay written by Xia Xue to participate in the competition and won the first place.

Xia Yu was sure that his father was a martial arts master because he saw his father broke a baseball bat.

Xia Yu revealed the secrets of Liu Xing and Xia Xue to their parents in the unconscious, so they were rewarded.

Because Liu Xing was recently fascinated with the "Three Kingdoms" game, he won the first place in the class in the historical stage examination. But the family thinks that Liu Xing cheated.

Liu Xing and his classmate Mouse did not pass the stage exam. The papers should be signed by the parents. Because they were afraid of punishment, they signed each other's parents' handwriting.

A lot of people asked Liu Xing where Mouse went but Liu Xing said that he did not know. Liu Xing also threatened the adults that he would also leave if they beat him again.

Hu Yitong and Xia Donghai competed to be the good father of Liu Xing.

Xia Donghai was very upset because of his unsatisfactory work.

Grandmother took a street singer to the Xias' home and said that this person was a distant relative Xia Ma.

The family blamed the grandmother and Xia Donghai for this matter. At this time, the father of Xiao Ma, Lao Ma, came and lived in the house.

小雨和朵朵发现一只受伤的小鸭子，小雨答应朵朵等小鸭子伤好了把它送给朵朵。小雨出去玩时，因为刘梅疏忽小鸭子从家里跑丢了。小雨闹着要小鸭子。刘梅买只大鸭子回来应付小雨，小雨不要，刘梅又费尽千辛万苦买回一只与原来相似的小鸭子，骗小雨说丢的小鸭子找回来了。小雨认出不是原来的小鸭子，正当小雨不再相信妈妈的时候，妈妈把原来的的小鸭子换回来了。

尚西山要拍摄一部有关"外星人"故事的儿童电影，夏雨根据屁股上的一块飞碟形的红色胎记，幻想自己是真正的"外星人"。刘梅在与邻居聊天的时候开玩笑说小雨是外星人。谁料，嘴太快的邻居竟把这事报告给了一家儿童科幻杂志，小雨出名了。玩具商邀请"名人"小雨做形象代言，尚西山也主动邀请夏雨担任主演。不料，这给小雨带来麻烦，他的屁股成了别人研究的焦点，他成了 "怪物"，夏雨开始痛恨自己是"外星人"，终于，小雨离家出走，刘梅说出真相。

爷爷发现卫生间的灯一夜未关，认为是刘星没关，姥姥承认是自己忘了关灯。刘梅知道姥姥夜间不上厕所，对母亲处处无原则的护着孩子很有意见，东海说昨晚是他忘了关灯，刘梅以为东海也骗她，请来了爷爷助阵！爷爷强调要养成勤俭节约的习惯，东海决定在卫生间装个声控灯。晚上刘星上厕所，不管制造多大的怪声，声控灯就是不亮，全家以为出事，纷纷赶来，原来是声控灯失灵！

夏雨发现小区里住进了一个神秘怪客，立刻通知了一心想做见义勇为小英雄的刘星，刘星认定怪客就是在逃的犯罪分子。夏雪帮助刘星把怪客请进了家，"软禁"在家中。其实，这名怪客是中了300万大奖的农民到这里躲远房亲戚的。这时，两名想要勒索的远房亲戚也赶到了夏家，两人在索要钱财时发生口角，扭打了起来。危急时刻，夏雪报了警，制服了怪客的这两名远房亲戚。

胡一统在夏家小区遇到以前曾经追求过的女子方倩倩，方倩倩误认为胡一统在小区有房子，于是对胡发起追求，并让人送花到夏家。正好被前来诉苦的宋阳看到，危言耸听，使刘梅认为有其他女子送花给东海，对东海怀疑起了疑心。后来方倩倩来夏家找胡一统，把刘梅错当为保姆，引起笑话。当方倩倩知道胡一统仍然一无所有，愤然离去。

为完成德育老师的作业，夏雪在刘星和夏雨的帮助下，编造了一篇给父母洗脚的作文。结果，作文未被通过，打回重写。这样，夏雪不得不真正的给妈妈洗一回脚，但这次洗脚对刘梅来说比受刑还难受。在父亲东海的教育下，夏雪、刘星、夏雨一起给母亲刘梅洗了一次舒服脚，还帮她揉起了肩。

夏雪不小心打碎了花瓶，在记事板上给刘梅留言并道歉，刘梅不但没批评她，还夸她诚实勇于认错，奖励她一个手机。刘星受到启发，有意把花瓶打碎，留言认错。姥姥看到留言，怕刘梅打刘星，买了一个花瓶，擦掉了留言。不过当姥姥得知真相后，给刘星买了个手机，要求他以后不许故意犯错。刘梅把手机暂时保管，要求刘星考两个80分才能得到手机。

刘梅每月都给孩子们发零用钱，但三个孩子都对妈妈的分配方式有些怨言。夏东海知道后，主动请缨要在家里实施一套全新零用钱分配方法--家务卡，即做家务积分，月初换零用钱。此举一出，效果果然不错。但日子长了，孩子们为得到更多的卡，做家务也做走了样，他们只求数量，不求质量的做法，让大人们头痛不已。

夏东海的剧本使某外资文化公司决定投资，该外籍老总要来夏家做客。刘梅和孩子们积极做好迎接准备。外籍老板提前送礼物给夏家每一个人，全家很兴奋。没想到，那老总竟是夏东海的前妻玛丽，玛丽从容地问候和品评众人，并要求带走一个孩子，还列出关于每一个人的物质诱惑。后来一家人一致决定不要玛丽的礼物，不许她破坏夏家的幸福。大家的拒绝让玛丽很是失望和震惊。

遭到拒绝，玛丽要在国内发展事业，并常来夏家看望孩子，她又开始送礼物，糖衣炮弹首先打倒夏雨和刘星，最后夏雪也被"腐蚀"。周末，三个孩子跟玛丽出门旅游，吃喝玩乐的很开心，但他们表示不会离开深爱的夏东海夫妇，他们说既然玛丽有钱，他们也不拒绝享受。东海夫妇欣喜之余又觉困惑，夏雪说因为看了有关生育和分娩的录象，觉得母亲很伟大，因此她原谅了玛丽。

夏雨吃奶糖成瘾，刘梅勒令他戒糖，夏雨偷吃，被刘梅发现，扬言要好好教训一下。夏雨提出为什么姥姥可以抽烟，他不可以吃糖？姥姥为了让小雨少吃点糖，表面答应与他一起戒烟。但姥姥仍然偷偷抽烟，被夏雨发现，吵闹着要吃糖，引起家人争吵。姥姥于是下定决心真戒烟，于是和夏雨一起吃肉干鱼片抵抗烟瘾。后来，戒糖和戒烟虽然成功了，但他们却养成了吃肉干鱼片的习惯。

刘梅要到外地出差七天，孩子们以为这次可以解放了。刘梅走后的两天，夏家老小们日日笙歌。可是麻烦很快来了，刘梅给大伙儿留下2000块钱的生活费眼看要花个一干二净，东海只好带着孩子们啃方便面。夏东海和孩子们只得硬着头皮自己烧饭，烧出来的饭无法下咽。而偏偏这时候，胡一统还来凑热闹，还孩子们一起闹着让胡一统请客。刘梅这时回到家来，结果要跑到外面领东海和孩子们回家。

姥姥为了和邻居老吴头比赛学英语，让孩子们帮忙，刘星当了姥姥的老师。刘星用了许多学校和家长对付他的办法教姥姥，姥姥在学习的过程中和刘星的方法发生冲突。姥姥三天两头被刘星考，很是头疼。姥姥压力越来越大，以至于最后失眠，开始吃药。终于姥姥不愿意学英语了，也与邻居老吴头和好。

夏雪爱打扮起来，刘梅担心她因打扮荒废学业，夏东海建议索性星期天由着夏雪打扮一翻。夏雪得意地穿着成人服饰闲逛，结果遇到轻浮小伙子的欺负，刘星拿起双节棍与小流氓格斗为姐姐出气，鼻青脸肿的回来。夏雪因遭羞辱把化妆品扔掉，还拒绝了东海、刘梅买的更多的女性用品。后来小流氓的母亲带着小流氓来道歉了，大家定睛一看，那个小流氓比刘星伤得更厉害。

夏雪荣升为学校通讯社主任，策划出"手拉手心连心"的活动，还与好朋友热情帮助生活较困难的同学宫海，并以这次帮助为主题发表了文章。这使宫海在同学面前抬不起头。夏雪不明就里，以为对宫海的帮助还不够，又发动同学为宫海捐款，这使宫海的自尊心受损，要求夏雪道歉，夏雪非常伤心，东海给夏雪及她同学讲了一个温暖的烛光的故事，夏雪终于明白过来，原来幸福来自于自尊。

东海夫妇买了吃的穿的送给孩子门，孩子们却不领情，说他们买的东西没有新意。夏东海夫妇对此很伤心，他们觉得自己为孩子们牺牲的太多，于是决定在下一个休息日创造一个 "二人世界"。结果孩子们虽然被支走了，但却被各种电话和上门者骚扰，最终，夫妇俩也没得到一日安宁。

夏雪的作文获得市中学生作文比赛大奖，一家出版社想让夏雪写一本自传体小说。夏雪趁假期写小说《成长》，小说中，母亲和弟弟缺点十足。家人不甘心，发起了感情攻势。出版社对小说提纲不满意，坚持让夏雪虚构一段恋情，这使夏雪决定终止合作。但夏雪没有终止写作，目的是锻炼自己的写作能力。夏家恢复了往日平静，全家人恢复了自己的真面目，糗事不断。

胡一统的海外亲戚去世给胡留下一笔巨额财富，胡一统竟然以此对刘梅夫妇要刘星的抚养权。刘梅寸步不让，东海要刘星自行抉择，刘星面临两难境地。胡一统许诺刘星许多物质需求，还要让刘星到国外留学。刘星想到即将出国，将东西都赠送了好友。没想到胡一统得到的遗产只是一句人生格言！

夜里，刘星不敢上厕所，结果尿床了。他不敢独自在家，电话铃一响，总是发出惊叫。夏雨说，这是因为他看了一个恐怖片《午夜凶铃》所致。夏雪为了帮刘星战胜恐怖，搞了一个"镇鬼降妖符"，结果刘星更加恐惧。夏东海故作对刘星的恐惧不当一回事儿，还在谈话中巧妙地溶入了鼓励的话。终于，刘星慢慢摆脱了恐惧的阴影。刘梅后来看了《午夜凶铃》，果然非常恐怖。

暑假快到了，刘梅忙着为夏雨找暑假特长班。夏雨不想参加，但在妈妈的坚持下不敢正面反抗，先后参加了小提琴，绘画，舞蹈等特长班考前训练，都以诸多原因失败。刘梅不愿意放弃，又给夏雨报英语特长班，夏雨故意没有通过入学考试。刘梅正悲伤，一群孩子们涌入夏家，是来拜夏雨为师学电脑的，并且同时教夏雨唱歌跳舞和画画等，刘梅自然不亦乐乎。

夏雪想搞一个网站，来挣钱。于是游说东海、刘梅借给她三千块。夫妻二人决定让夏雪去尝试一下，所以刘梅答应了她的请求。网站也顺利地办了起来。但开办起来的购物网站并非一帆风顺，广告没有打出去，而且根本没人到夏雪的网站购物，最气人的是夏雪的网站还被人给黑了，夏东海不得不出面请宁子来修理。宁子给夏雪讲了他自己的办网站的故事，夏雪听后，十分沮丧。

不服输的夏雪再出奇招，要在报纸和电视上打广告，但需要追加投资。这次，东海挺身而出，给了夏雪二千块钱。但在报纸和电视的广告并没有起到什么作用，夏雪一件东西都没卖出去，被打击的夏雪一点信心也没有了。作为父母的东海、刘梅想尽方法帮助夏雪重拾信心，但都无济无事。东海瞒着夏雪要买下夏雪的网站，让夏雪重新树立起信心。夏雪知道后，决定今后会信心十足做每件事。

假期里，夏东海的一位漫画家朋友魏征因故寄存了两大袋漫画在家里。因为漫画颇受孩子们的喜爱，夏雨、刘星合谋，成立了图书馆向小朋友们出租漫画书。魏征提前返回，三个孩子发现其中一本书被小朋友二胖撕坏了。为了遮掩这个事实，孩子们一番掩饰。后来在夏东海教育下，孩子们向魏叔叔道了歉。

刘星要去青岛为北京足球队加油助威，为了筹款将自己的房间租借给了同学哑铃。外表文质彬彬的哑铃爱搞些发明创造，把夏家当作他的实验基地，东海一家老小起初十分喜爱哑铃，但他的发明创造却使得夏家乱成一团。忍无可忍的夏家老少们不得不给哑铃下了逐客令。

夏东海的表弟周正曾是足球名星，现在开办公司，自任CEO。他来夏家做客，讲述自己的创业史，三个孩子听得热血沸腾，立志要做CEO。夏雪很快行动，为一家出版社当了图书推销员。刘星和夏雨拿着周正的头发搞拍卖会，赢得利益。夏雪推销的书后来得到畅销，但买周正头发的小区的孩子们发觉自己上了当，因为周正踢球时是光头，头发一钱不值，他们追着刘星和夏雨退钱。

鼠标过生日，键盘拿了一百块钱做礼物，刘星表示要送鼠标二百块钱的生日蛋糕。刘星为二百块钱发愁，想了好多办法都不能凑到钱，万般无奈想偷家里的钱，偷了之后因害怕又送了回去。最后只好卖自己的运动鞋和两根心爱的台球杆，凑够二百块。刘星骗父母东西的去处，但事情最终败露。在夏东海和刘梅的教育下，刘星终于认识到了自己的错误。

三个孩子偏食，爷爷挖些野菜，要给孩子们吃忆苦饭。姥姥用鸡油、火腿丝精心料理野菜，结果孩子们把野菜抢了精光，小雨吵着还要吃。姥姥打的去郊外挖野菜，可惜只挖到二根，她要烧个满汉全席的名菜“青龙过海”给孩子们吃，夏东海让三个孩子计算 名菜的成本，相当于他们两个月零花钱的总和。他要求孩子们答应交出钱才可以享受菜，还规定今后挑菜者，都要付钱。三个孩子从此以后不敢挑食。

夏东海一家所在的社区要举行象棋大赛，夏东海被聘为总裁判长，夏雨和爷爷都报名参加比赛。爷爷许诺若是自己得到冠军奖品就送给夏雨，但爷爷的对手老吴头的儿子来到夏家，拿出一百块钱，说老吴头一输就犯病，让爷爷买一个奖品（毛绒金鸡），把冠军让给老吴头，爷爷答应了。老吴头拿到了代表冠军的小金鸡。夏雨却在小伙伴朵朵面前很没面子。夏雨受到小朋友的嘲笑，一气之下说漏了嘴。老吴头气得犯病躺倒，他提前从医院跑出来了，坚决要求和爷爷复赛。

大明是一个公司老板，整天忙于工作无暇照顾孩子，上次与刘梅联系上之后，这次出差，要把儿子欢欢寄住在刘梅家。刘梅、夏东海很疼爱欢欢，但欢欢却因看见夏家其乐融融的气氛心生妒嫉，于是制造了层出不穷的恶作剧捉弄夏家老少。把夏家的筷子当成蜡烛点了，又把夏雪的书包也烧了，忍无可忍的夏家的孩子们准备反击。

刘星、夏雨和夏雪三人吓唬欢欢要把他送到孤儿院去。欢欢听后，坐在厕所里哭了起来。东海、刘梅批评了三个孩子，东海把欢欢从厕所里哄了出来，与大明通了电话，大明答应明天来接欢欢。可是时间到了，来的却是大明送给欢欢的礼物，她本人没来。伤心的欢欢要去深圳找妈妈，被夏雪拉住。夏家人撒谎将大明骗回来。大明在他们的启发下，认识到自己的错误，决心以后给欢欢快乐。

夏雪在市奥林匹克比赛获得二等奖，刘梅领了奖金，大家举杯祝贺双喜临门。刘梅的同事苏洁没有争到发奖金名额，来夏家诉苦。第二天苏洁闹情绪险些造成重大医疗事故不但被扣工资，而且工作也被停了，接受停职检查。刘梅认为是自己没把发奖金名额让给苏洁所致，很难过，夏雪得知只与第一名差一分后，也很悲伤，"双喜临门"成了祸不单行。东海先后把夏雪和刘梅开导。苏洁又来诉苦，受到夏家的不耐烦，只得去找张医生倾诉。

刘星功课不断下滑，刘梅准备找个家庭教师来帮助刘星。刘星的第一个家庭教师是个彪形大汉，用学院派的教育腔调跟刘星谈话。结果被刘星连连捉弄。第二天一戴着眼镜的文弱书生出现在刘星面前，自称来给刘星当家教。刘星不屑，称自己让这个人在十分钟之内离开。没想到连使几招，都被家教破解。文弱家教使用的全是写感谢信、贷分、踢足球、聊天等教育方法。刘星服帖了，可刘梅却不同意家教的教育方法了。

夏雪参加"青春丰采"比赛，大家没当回事， 夏雪意外进入复赛，大家不以为然。夏雪很生气，发奋用功，进入复赛。刘梅想为女儿做点什么，夏东海却认为要对夏雪继续嘲笑，可以激发她的斗志。果然，夏雪又杀进了决赛！大家继续对夏雪不以为然。导致夏雪情绪不佳决赛中发挥失常，夏雪回到家后进自己房间伤心地大哭。家人安慰她，夏雪相信父母的话，夏雪在父母的争吵中体会了他们的苦心。

孩子们在吃饭的时候挑剔刘梅烧的饭不对口味，刘梅叹做父母难。东海建议父母和孩子换角色，提出假如父母老了，让孩子们来照顾的的设想，孩子们觉得没有什么难的，欣然答应。与是东海和刘梅以80岁自居，躺在床上，让孩子们照顾。后来孩子们认识到做父母很难，照顾家人的衣食住行都不是想象的那么容易。从此之后理解了父母的辛劳，东海和刘梅得到安慰。

夏东海一个外地亲戚菲菲因失恋受到打击，她暂住夏家一段时间散心。夏东海和刘梅告诉孩子们要照顾客人情绪，说菲菲可能有自杀倾向。孩子们提出一些可笑又难回答的问题，最后说要配合父母帮助菲菲重新站起来。菲菲来后，大家怕她自杀，大惊小怪，虚惊一场。后来大家想尽办法让她高兴，还带她去郊游。菲菲却触景伤情，更加伤心。夏东海夫妇商议，为菲菲找个新的男朋友。

东海夫妇为菲菲介绍新男朋友，遭到拒绝。孩子们发现一男青年在家门口转悠，以为是小偷，误会后才知是菲菲的男朋友锋，他来找菲菲想重归于好，又怕菲菲拒绝。大家认为"破镜重圆"很有希望，但遭到菲菲拒绝。锋闹着要自杀。夏雪提出找电视台为菲菲和锋做一期真情互动，可上镜最少需要半年，最后东海一家人想尽办法，终于让两个年轻人和好了。

刘星穿了一条希奇古怪的自制"乞丐牛仔裤"上学，本想在同学面前炫耀，却被几个高年级男生"借"走了裤子，穿着裤衩狼狈回家。刘星想要回他的裤子，一次偶然的机会认识了"一笑堂"堂主黄飞鸿，黄飞鸿帮他要回了裤子。结果，刘星整个人几乎变成了江湖人士。夏东海看出了其中的破绽，决定挺身而出拯救儿子。

夏雪迷上了网络作家"痞子张"，而刘星则迷上了说唱歌手"梧桐雨"。俩人为偶像问题闹得不可开交。东海夫妻想缓和姐弟矛盾，却把事情越搞越糟。夏东海以身说法，两个孩子都不领情。夏东海又调查了"痞子张"与"梧桐雨"的个人资料，才知道他们是同一个人且人品不是很好。姐弟两人参加记者招待会明白了真相，十分沮丧。

夏家的邻居铃铃对弹琴已从厌烦到恐惧，刘星和夏雨生鬼点子让铃铃吃泻药逃避比赛。铃铃父母认为是刘星的半瓶水害了女儿，为此到夏家问罪。夏东海夫妇只好向对方道歉，并承担医药费。

铃铃很快痊愈，向刘星和夏雨表示感谢，送他们自己画的纪念卡，此时她的父母拿着要求惩治刘星、夏雨的檄文来了，夏东海夫妇指出他们教育孩子的误区，铃铃也说明自己是吃泻药逃避比赛，而且以后也不想当钢琴家！

爷爷向全家宣布，要节约用水，夏东海和夏雪赞成，刘星和姥姥反对，由于反对不成，刘星便采用恶作剧的手段。结果一系列的恶作剧让自己和姥姥倒霉。新的一天又开始了，家中突然停了水，一家人简直到了无法生活的地步，夏东海趁机给大家讲了水资源的重要性，姥姥和刘星转过了弯，最后夏东海打开了家里的总阀门！

刘星和夏雨的顽皮邋遢让刘梅头痛不已。菲菲因为房屋装修，带着几个同做模特的靓女借住在东海家，几个女孩的进驻，让刘星和夏雨产生了很大变化。刘星变得文明起来，一付绅士打扮，力求表现成熟；可爱的夏雨整天被一群靓女亲得满脸唇印。最让刘梅担心的是，夏雨开始有女性倾向，且放弃了武术班，改学插花。刘梅认为两个孩子受菲菲的不良影响，几经周折，菲菲走了。两个孩子又恢复了以往的顽皮邋遢。

联欢会上，作为生活委员的刘星在经常打断了米兰的歌，也抢了米兰的风头。因此两人产生了矛盾。刘星因为买火鸡而超支。在别人启发下，他在洗照片的时候找了熟人节省了钱，便用这笔钱补齐了火鸡造成的亏空。米兰发现后，说刘星假报预算、贪污公款而且要向老师举报他。在夏东海帮助下，刘星不仅化解了与米兰的矛盾，而且也完满地解决了这件事。

夏雨在一次演唱排练中，偶尔跑了调，被大家嘲笑，于是一唱到那里就跑调。东海和刘梅为重塑儿子的信心，拿出一种巧克力，对夏雨说他们的巧克力的神奇功能，可以帮助夏雨。果然，夏雨吃完巧克力后把歌唱的十分到位。为使夏雨能够信心永在，一家人开始忙于赶制巧克力。这时，夏雨却发现了他们的秘密。

刘星想要一双新球鞋，夏东海要求刘星贷款买鞋按揭还款。买了新鞋的刘星格外高兴，为了还钱起初向家里其他人借钱。但别人都要求以实物抵压的形式才借钱给他，迫于无奈只好拿自己的心爱的东西压着。但他想撒赖不还钱，时间一长，家人开始要拍卖刘星心爱的东西，这下，可把刘星急坏了。只好在假期里打工还钱。当他把钱还完的时候，刘星觉得自己的新鞋更可爱了！

刘星听了杨利伟叔叔的报告，立志要做个宇航员，开始锻炼宇航员的各种本领，使一家人深受"毒害"。后来夏东海和夏雪翻阅有关资料，为刘星制订了完善的训练计划。刘星受不了魔鬼训练，开始打退堂鼓，遭到了夏雪和夏雨的嘲笑。东海鼓励刘星心怀高远，同时要脚踏实地持之以恒。刘星告诉大家自己在学校举办的天文知识比赛中获奖。众人祝贺。可是刘星又开始对潜海探险发生了兴趣。

夏雨用仿真枪伤了姥姥。爷爷没收了夏雨的仿真枪，并配合城管一举捣毁了非法销售仿真枪的小店。爷爷风光无限，紧接着又把姥姥买给孩子们的健脑胶囊的厂家告到消协，还到刘星的教辅书籍的出版社讨说法。姥姥岂能甘拜下风，到处寻找为孩子维权的目标，终于发现市场上流散着不少假铅笔，于是在孩子们考试那天，姥姥买了铅笔带到了学校，让众多持"疑似"假铅笔的同学换了笔。由此姥姥名声大振，还受到了媒体表扬。爷爷又开始寻找新的维权目标。

胡一统向记者说出自己看到的抢劫罪犯的外表，罪犯被抓获，胡的名字登在了报纸上，他到处自吹自擂。后来谣传那名罪犯的同伙在寻找胡一统，胡担心罪犯会来报复他所以变得很恐惧，躲到夏家，死活赖着不走。不想刘星在小区里到处宣扬自己的英雄父亲，好多人都知道胡一统住在夏家。胡一统很惊慌，怀疑到夏家来的任何人。后来他还击倒了来感谢他送赏金的事主，此时得知罪犯的同伙也被抓获。

夏雨和贫困山区的孙志伟在学校组织的手拉手活动中结成对子，夏东海夫妇都觉得这是一个让孩子认识社会和人生的好机会。孙志伟来了，他对很多现代时髦东西都不能适应。夏家的三个孩子还要拿出零花钱资助苦孩子上大学。孙志伟走后，夏东海决定带三个孩子去山区回访，姥姥出于心疼孩子，给他们带了很多吃的，但夏东海把这些东西都留下了。

刘星拿夏雨从国外带回来的飞机模型交给老师，被评为优秀作业。老师让刘星给同学介绍航模，不想刘星歪打正着地讲出了制作技巧，获得了掌声。老师要刘星报名参加全国的航模制作大赛，所有人的希望寄托在了刘星身上，刘星无奈说出真相，但别人认为他谦虚不相信。骑虎难下的刘星只好学做手工模型，还真的做出了优秀的模型。比赛之前，刘星说出了真相，得到了大家的谅解。

一户三口之家的新邻居搬来，他们的女儿与刘星是同学。这家人特别爱向刘梅家借东西，从大到小都有，而且多数有借无还。这给夏东海夫妇带来了一些烦恼，但又有苦难言。结果，小雪、刘星、夏雨三个孩子一起找邻居，要回了借走的东西，帮父母摆脱了眼前的麻烦。

夏雨回家发现屋里混乱不堪，以为家里遭劫，原来是夏雪忘记穿校服回家换衣服所致。刘星对学校非让穿校服不可的规定大发牢骚。刘星在校服上画上了兔八哥等乱七八糟的东西，被学校要求见家长。刘星与夏雪决定成立"美丽二人组"，两人身着奇装异服，慷慨激扬，愈演愈烈。东海说这个年龄的孩子正处于爱美阶段，而且性格反叛，让刘梅不要生气。刘梅与东海为孩子们争取每周一次的"无校服日"。

刘星一连几天回家很晚，刘梅从来电显示查出，刘星一直在网吧呆着。刘梅决心弄个水落石出。但无奈刘梅百般逼问，软硬兼施，都不曾获知刘星去了哪里。为此母子俩严重对立起来。胡一统来告诉刘梅，刘星要跟他在一起住一段时间，并告诉刘梅，刘星最近在和一个叫"无声天使"的网友打得火热。刘梅打开刘星的电脑，查他的聊天记录，原来"无声天使"是个聋哑人。刘梅为刘星的爱心和对他的误解而唏嘘，这时夏东海带着"无声天使"来到了夏家。

刘梅看到东海和儿子们在小区踢毽子，输了便罚狗叫，引来众多街坊围观，刘梅说海没大没小。爷爷看到这个情景很冒火，委托刘梅好好管理孩子和东海。刘梅得了尚方宝剑，为整顿家风，制定家法二十一条。爷爷对其增加一倍，颁布执行。家庭的气氛变得死气沉沉。刘梅主动废除了二十一条，并和孩子们一起玩游戏，刘梅输了要学三声狗叫。刘梅学了狗叫，不想此时，爷爷又回来了。

夏雪接到一个通知，她的作文被收集到全国优秀作文选中，刘梅很高兴。此时刘星也接到一个通知，他的一副课外美术写生被收集到全国少儿优秀绘画集中。看到刘星还有这方面天才，刘梅惊喜万分。这时夏雨也收到通知，他捏的外星人获入一个少儿雕塑选，刘梅感到万分自豪和喜悦，她到处打电话，告之亲朋这个特大喜讯。夏东海泼冷水，说现在社会上专门有人挖空心思赚孩子和家长的钱，让夏东海夫妇别上当。刘梅不相信夏东海的话，然而最后的真相是，孩子们收到了通知果然是一个骗局。

刘星偶然得到一个喷"血"的玩具，他看到茜茜因为英语阶段测验发愁，刘星热情地把自己的"宝贝"借给茜茜用，让茜茜装扮流鼻血。但茜茜的父母将这件事告诉了夏东海夫妇。考试那天，刘星一起来就不舒服，还头晕流鼻血，但夏东海夫妇都认为他是想故意逃避考试，坚决把他押送到学校去。结果刘星倒在考场，被学校送到医院。刘星认识到自己是自食其果，主动交出了喷血玩具。

夏雨新转入的班级选班长，班里伟伟和小红的票正好持平，都想拉夏雨这一票，两人对夏雨很是热情，还送东西给夏雨，夏雨不知如何是好，很苦恼，甚至用水浇自己盼着生病不用去上学；刘梅也为了科室选主任，在胡医生和张医生之间徘徊不定，很是烦恼。最终刘梅决定退还张医生的礼物，把票投向经验丰富医德高尚的胡医生，夏雨也对来看望自己病情的伟伟和小红说他要投自己一票。

刘星因为参加一个同学patty玩得兴起，晚上没有回家也没有打电话请假，还在同学面前炫耀妈妈是自己的哥们，不会为难他。第二天早晨，刘梅到刘星教室门口等刘星，还要揍他，刘星在同学面前大失脸面，刘星的同学都当刘梅恶煞一般避着。刘星则在同学面前处处维护刘梅，刘梅为了给刘星也给自己挽回面子，让刘星请同学来家吃饭。经过一番试探，刘星的同学承认刘梅是刘星的哥们。

刘梅从同事那里获知了很多关于"培养神童的宝贵经验"，思想上受到极大触动。回到家，准备对夏雨试行突击培养。刘梅的计划开始实验执行，夏雨苦不堪言，大家都站在反对立场，刘梅为了证明自己是正确的，特意邀请同事带其神童儿子来家里做客。神童来了，却表现得像半个白痴。神童走后，刘梅终于放弃了对夏雨的培养计划。

刘梅请来同事的儿子张朝给夏雪辅导高考。张朝长相俊美，年轻开朗，夏雪不免被吸引。夏雪为了显示自己的聪明过人，大背百科全书，张朝认为夏雪很优秀不需要辅导，不再来了。夏雪开始郁闷，两个男孩帮姐姐出谋划策。接下来，夏雪的成绩忽然一落千丈，急坏了刘梅，又张罗着要帮夏雪请辅导老师、夏东海知道是什么原因让女儿变化无常，他当然有对付女儿这种青春期躁动的办法。