The Ten Brothers return as the Lake Devil is plagued by a monster fish. To settle the old score, Marshal asks Shrimpy and his ten sons to exterminate the fish. Excelled on land, the ten brothers find themselves quite useless in the water.

譚美為供弟弟敦正讀書而任職吧女，但敦正誤交損友染上毒癮，更被損友操控犯罪。敦正到酒吧找朋友時，竟看見其姊被客人輕薄，始知譚美為他而出賣色相，敦正知錯，真心改過。敦正女友羅莎蓮被酒吧老闆一叔捉往別墅…