Courage must find an antidote when Muriel is bitten; Eustace takes Courage with him when he visits his mother on Mother's Day.
Eustace and Courage go into town for hamburgers; when Courage, Eustace and Muriel are on an island, they encounter Katz.
The chicken from outer space returns to seek revenge on Courage; an army of angry eggplants plan to attack Muriel.
A tornado destroys the farmhouse and turns Muriel into a 3-year-old girl; an evil stage-master turns Muriel and Eustace into puppets.