Now he is comfortable in his new house, Justin wants to have a housewarming party. In order to help, Robert the robot has turned the heating up to full, while Justin has forgotten to invite the guests and Little Monster is in a very cheeky mood. Will the party be ruined?

Justin moves into his new house, but discovers that there are people already living there.

Chris is coming to visit. Robert is delighted that he is coming, because he likes things to be just right, not like messy Justin. Except that when Chris finally arrives, Robert discovers that his friend is even more conscious about cleanliness than he is. The house is so spotless that no one dares do anything. How can things change? With Little Monster's help, of course.

Robert has been very busy inventing. He is very proud of his hair tonic. Unfortunately, the tonic tends to turn everyone's hair the wrong colour. Nina tries to save the day with one of her own inventions.

It is Bake A Cake Day in Justin Town and Justin decides to give Robert a treat for all his hard work. He needs the help of Little Monster and all his friends to make sure that Robert does not see the cake before it is ready

All is well in Justin's House - until news arrives that Auntie Justina is paying a visit. Last time she came, Little Monster poured custard into her bag. Everything needs to be spick and span, and Little Monster must not be seen, especially near Justina's bag!

Justin is going out to dinner, but he has played football in his best suit. As long as he doesn't shrink it in the wash, everything will be fine. Will Justin follow the washing instructions properly? And how will a giant duvet come to everyone's rescue?

Justin is keen to be part of Race Day and wants to beat Chris and Dee to the finish.

Everyone in Justin's House wants to start with art. Unfortunately, Little Monster wants to use the same things as Justin to paint the perfect picture.

Every month something terrible happens - Justin and Robert try to give Little Monster a bath. It's always Justin who ends up getting soaked. Will Little Monster finally get a wash this time around?

Mr Bloom has sent a special seed to Justin. Unfortunately Justin and Robert feed it the wrong growing material and the plant threatens to eat the house. With some help from Mr Bloom, Little Monster manages to save the day.

Robert and Little Monster are getting the house ready for Christmas. Justin tries to help, but keeps making more and more mess. Things get even worse when he tries to wrap a present for Father Christmas.