After trapping the Gokaigers and S?suke in Gunman World, Babatcheed proceeds to begin his attack on the Human World. However, this attracts the Zangyack's attention with Warz coming to Earth with Insarn and Barizorg in what becomes an all-out fight among the villains over who has the greater right to conquer the planet. Back in Gunman World, after the Engines are unable to break the Isolation Barrier around the Human World in their shrunken state, the Gokai Galleon crew set off for Machine World to ask Engine Machalcon, Speedor and Bearrv's son, for his assistance. At first, he is unwilling to help despite his parents' pleas. When S?suke tries to convince the Engine in his own annoying way, an annoyed Machalcon fires at the Gokai Galleon while saying that he will help if they can catch him. The Gokaigers accept his challenge as they use their Gokai Machines to pursue the Engine in his tracks. As Gokai Red points out that the Engine is really running away from his troubles, he has the Gokai Galleon, the Gokai Jet, and the Gokai Racer combine onto Machalcon to slow him down. Finally, admitting that his rebellious attitude is because he has been unable to find anything to fight for, and being jealous of his parents heroism, Machalcon is accepted as a Gokai Galleon crew member as he uses his power to shatter the Isolation Barrier. The pirates leave, leaving Bomper and the Engines behind while promising to come back for Machalcon after handling things on Earth. Once back in the Human World in the middle of the villains' battle, the Gokaigers take on both evil groups as Warz Gill falls back so the pirates and the Gaiark can kill each other. Using the Go-onger Keys, the Gokaigers defeat the Gaiark grunts before overwhelming Babatcheed and then using the Gokai Galleon Buster to defeat him. After activating his Industrial Revolution enlargement sequence, Babatcheed battles Gokaioh and Goujyujin before S?suke tells the Gokaigers to use his team's Great Power since they have formed a partnership with Machalcon. Summoned into the Human World, Machalcon combines with Gokaioh to form Go-on Gokaioh who scraps Babatcheed. Soon after, as Machalcon returns to Machine World with the promise to come to their aid when needed, S?suke is impressed with the Gokai Galleon crew's ability to befriend the previously rebellious Engine and asks if can join their crew, as well.