More godmasters have been detected, but Giga fears they will defy him and Mega, so he has Hydra and Buster go searching. Meanwhile, a man named Ginrai uses an incredibly familiar truck to replace his original, which broke down, as he has to deliver a sick dolphin to a research institute where Diver works. While tinkering inside said truck, he finds a pair of godmaster-bracelets which become stuck to him, but he has long forgotten his heritage as he doesn't know what the bracelets really are...