The Bagge's yard gets flouded, Eustace and Muriel go for a swim. Everything is alright until the water rises too high and enters their house. Courage paddles around in the water to the town of Nowhere and stops when he sees a beaver putting up a dam. Courage trys to ask him nicely to stop building it because it ruining there home, but the beaver just hits him with his tail. Courage then finds out the beaver's real love is for music and not construction. The beaver starts to hit his tail as a rythem on the dam.Courage picks the string on his yo-yo, like an instrument. The beaver's tale constatly hiting the dam eventually breaks it. Courage's house's water level drys up to nothing. Muriel and Eustace then attend a concert in a local karaoke-type place to watch Courage and the beaver play their instruments.