Hulk chases Leader back to the Mesozoic and Hulk battles Leader and his mind-controlled dinosaurs while befriending a Little Dinosaur. He helped the Hulk defeat the other Dinosaurs whose intelligence had been increased by the Leader's mind control device. He even saved the Hulk from drowning in a tar pit. To save his new friend and the Dinosaurs the Hulk takes them to the Savage Land to live in peace.
Powers and Abilities
He had the abilities of a regular adolescent T-Rex. His skin was turned Red by when exposed to intense steam. His intelligence was temporarily increased when exposed to the Leaders mind control device.