Gumball and Darwin find out why Dad's diet was not working, and after they help him lose weight, Richard becomes more obnoxious.

Gumball refuses to accept he is the only kid at school that doesn't have special powers; Gumball convinces Mrs. Jotunheim, Hector's mom, to take him on as her apprentice but she soon learns leaving Gumball unsupervised around magic is a big mistake.