Three aliens disguised as evil descend upon a corner of Earth. They resurrect Choi Kang-woo, who died in a car accident, and grant him superpowers to carry out all their wicked deeds through him. When they control Choi Kang-woo to kidnap Dr. Um, a chemist, and Dr. Jo, a physicist, Hyung-rae joins Taili on a mission to rescue Dr. Um, and Dr. Um's only son, Cha-dol, also accompanies them. The heroes, including Esperman, engage in a fierce battle against the three aliens. Cha-dol and Wooraemae succeed in rescuing Dr. Um. Choi Kang-woo also regains his sanity by imagining his sister Miran in Cha-dol's childhood form, and joins the heroes in another battle against the aliens, which ultimately ends in victory for the side of justice.