Rex had a company when he left his time: a Deinonychus that insists on coming with him through the time. Through the translator in his Dino Holder, Rex found out that its name was Claws. But when the kids had a great chat, Claws ran off and followed a boy! And more strangely, the boy said "Hey Claws, long time no see! It's been 5 years!" The kids watched in confusion. Could there be another Dino Master other than them and the Alpha Gang? Who is this kid? He isn't any older than them, but he seemed to experienced more! But it seems like Al knew something more than the rest of the Team...