Sarah's cat Rotten Ralph tries to help her create a school project based on ancient Egypt, but he is more of a hindrance than a help.

Rotten Ralph comes to appreciate Sarah's healthy cat food after he gets sick from eating out of trash cans.

When Rotten Ralph, the cat, fails to win a spot on a baseball team with his friend Sarah, he becomes the "cat boy" instead, still dreaming of proving himself the superstar he imagines himself to be.