On the planet Earthdash, its inhabitants gaze on its moon and the technologically advanced lunar city of Mooneyes with awe. Dan JD, a boy living in Rollingtown on Earthdash's surface, gets caught up in Bigfoot Basketball—a fast-paced sport played with giant Bigfoot robots.

Takeshi Kido and Kentaro Shiratori are a pair of friends who have been together for almost their entire life. One night, a strange being comes out from the lake and starts attacking them. When Takeshi and Kentaro are almost eliminated, a strange being named Kopu calls them and tells them that they are the chosen ones to inherit the power to protect the world from an evil being named Goumon. Now, they join their hands to transform into Barom One, a being with superior skills, who will fight to protect the city.

Tom Sawyer is a young boy growing up along the Mississippi River in the mid 1800s. Along with his best friend Huckleberry Finn, he spends his days ditching school, fishing, climbing trees and having adventures.

Akira Yuki has spent years honing his Bajiquan skills under the guidance of his grandfather. He yearns to see the constellation of the eight stars of heaven, which are only revealed to those with real strength. This burning desire urges him to embark on travels, so as to learn more about how to see the stars. Meanwhile, a nefarious robotics scientist, Eva Durix, desires to create the perfect soldier. Eva's group, Judgment 6, tracks down and kidnaps Sarah Bryant, a college student and close acquaintance of Akira who is investigating a mysterious accident concerning her brother. Akira must now fight his way to Sarah to save her from the clutches of Judgement 6, a perilous path sure to be paved with countless challenges.