Everything is going along fine at Zeke's uncle's ranch until a Triceratops rages at a stagecoach and the town. Zeke saves the town including Angelia and Maria from certain death. Zeke then finds an unconcious stranger a little ways from Dos Locos who is accompanied by a T-Rex. When the stranger comes to, he tells them that DAllesandro, who does not like Uncle Jesse, is trying to bring a Triceratops herd into Dos Locos. Zeke and Angelia must travel to a prehistoric world to try to save the town.