Emperor Muge Zarbados and his Empire of Death determine that the faraway planet of Earth will be their next conquest. Muge is made even more terrifying by Shapiro Keats, a power-hungry Earthling-turned-traitor. Shinobu, Sara (Shapiro's former girlfriend), Masato, and Ryo of the Jyusenkitai/Cyber Beast Force are tasked with piloting the four Jyusenki/Beast Mecha (Eagle Fighter, Land Cougar, Land Liger, and Big Moth [a gigantic mecha]), which may combine to become the massive mech Dancougar.