Mordecai and Rigby try to clean the fountain when Benson told them to but they find a bunch of baby ducks. So Benson and the two say to give it away. But when they imprint on Rigby, they start to do learn from Rigby on fighting and playing. Mordecai and Rigby think they should keep them after it learns from Rigby. But the duck collector tries to get away with the ducks.