Private detective Duckman becomes a celebrity and is about to star in his own TV show. Now, he lives his life with pleasure, abandoning his family, only to be one day removed and replaced by a new Duckman, a more muscular and superhero-like. The Duckman is about to commit suicide, being rejected by his family, however, his friend, Cornfed, asks him to return his place under the sun and take down the new Duckman. After a series of humorous adventures, Duckman is able to gain access to the studio where the show is filming. There, he confronts his impersonator, who is revealed to be a robot, and is then destroyed. The game culminates with Duckman opposing the one behind the whole impersonator plot, his archenemy, the 'King' Chicken.