Ddoli studies hard to research the martial arts and learning like his grandfather. On the other hand, Samtos, the subordinate of Titos, comes to the earth on a mission of reconnaissance in order to conquer the earth. He meets Ddoli who practices the martial arts by chance. Ddoli has the superpower with the help of Samtos, and Samtos turns out the foolish Samdoli. After that, they come to Seoul. Ddoli has a pleasant time in school. Ddoli arrests the pickpockets using his superpower. Samdoli is impressed by the warm and beautiful mind of the children on the earth and leaves the earth in order to hinder Titos.