Scientists believe that 65,000,000 years ago, a meteorite's crash on Earth killed off the dinosaurs, but in truth, it split Earth into two parallel universes: Dino Earth, an Earth where dinosaurs were still the superior species, and our Earth, referred to as Another Earth by the residents of Dino Earth. Over time, the Saurians and Bakuryu races came into being on Dino Earth but were at war with the Evoliens, entities that emerged from the meteor. The two Earths are separate until Asuka, one of the Saurians from Dino Earth, arrives on Earth via a transdimensional portal. However, he is followed by the Evoliens in their Anamolicarus spaceship and the three Bakuryu under their control. As the Bakuryu Tyrannosaurus, Ptreranodon, and Triceratops attack Tokyo, a call is sent out to three destined ones who possess Dino Guts to gain the power to tame the three beasts. Together with their Bakuryu partners, the three become Abarangers to protect their dimension from the Evoliens. In time another Abaranger appears, but he takes the name "Abare Killer" and fights the others while the Evoliens carry out their ultimate goal: the resurrection of their god.