While playing with Bronty in the forest, Dino Boy is captured by a pterodactyl. After it is attacked by another pterodactyl, Dino Boy is dropped into Horror Swamp where he is captured by the dreaded Worm People and is then imprisoned within a giant beetle pit. Ugh is able to track him down and rescue they youth before it is too late.

The Moss Men have captured Dino Boy. Can Ugh save him before he is sacrificed?

Dino Boy is captured and imprisoned by the fearsome Treemen tribe, who plan to sacrifice the youth to their prehistoric vulture gods. The vultures move in for the kill as Ugh puts his rescue plan into effect, causing a large group of wooly mammoths to stampede through the Treemen's habitat. During the rescue, Dino Boy falls into the river below but is rescued by Ugh.

A tribe known as the Saber-toothed people attack another village and they capture Dino Boy with their so called "Fire God". Can Ugh rescue Dino Boy before he is sacrificed to the true "Fire God"?

A giant snow creature attacks a village and carries away a little girl and Dino Boy and Ugh chase it. Can they rescue the little girl from the monstrous creature?

Ugh is captured by the masked Wolf People who plan to torture the caveman before putting him to death. Can Dino Boy and Bronty rescue him in time and save him from this terrible fate?

An earthquake panics Bronty and he runs into a cave which leads to a mysterious valley where a giant captures him. Can Dino Boy and Ugh save their pet from this fearsome Goliath?

Ugh is captured by the tiny Ant Warriors and Dino Boy and Bronty race to free him. Once there they join forces with the Ant Warriors to defeat a common foe, a giant sloth bear. Can they defeat this dangerous menace?

One of the people known as the Bird Riders is knocked out of the sky by the Rock Pygmies and now Ugh and Dino Boy rush to his aid. Can they make it in time and save him from the fierce pygmies?

Ugh and Dino Boy get separated by a volcanic eruption and Dino Boy winds up in a valley of gigantic insect and the fearsome tribe of giant fire ants. Can Ugh find him in time and save him from the infernal insects?

Dino Boy and Bronty have a run in with the ferocious Rock Pygmies. Can they escape from these fearsome fighters and can Ugh make it in time to help?

A tribe called the Bird Men pursue a young caveman named Goom-wah and Ugh and Dino Boy help the young caveman to escape his pursuers. Can they get him back to his village by taking the treacherous river route full of dangerous animals and the Snake People tribe?

Dino Boy is captured by a race of winged weirdos called the Vampire Men and is taken to a cave to be sacrificed to their "Bat God". Can Ugh and Bronty get there in time to rescue Dino Boy from this horrible fate?

Dino Boy and Ugh come across a native that is being hunted by the Sun people and now they are being hunted too. Can they turn the tables on their pursuers?

Ugh is captured by a group of sun-worshipers and is to be their sacrifice for their god. Can Dino Boy and Bronty save him from this horrible fate?

Dino Boy is captured by a pterodactyl and it is up to Ugh to use Dino Boy's bow and arrow to save him. Can Ugh hit the mark and save his best friend?

When Dino Boy averts a Spear Warrior from making a kill and now Ugh must face their leader in a duel to decide their fate. Can Ugh win and can they escape from this predicament?

Dino Boy's caveman friend, Ugh, is stung by a poisonous wasp and Dino Boy must go to Mist Island, Land of the Moss Men, to retrieve the herbs needed to cure his friend. Can Dino Boy get the herbs and make it back in time to save Ugh?