Mud Muddle is the final episode of the fifth season and it also marks the series finale of the 2004-2011 series of Peep and the Big Wide World.
Beaver Boy is determined to surprise his parents by building a dam all by himself ... with a little help from his friends. Peep, Quack and Chirp soon discover that making "perfect mud" isn't as easy as it looks.
- This is the series finale of the 2004-2011 series of Peep and the Big Wide World. It is unknown if the revival series of this show will be coming.