A bad sneaky student switches Elroy's report tape with his own, which consists of 4 D's, a "F", and a "H", but Elroy's family doesn't believe him so he runs away with Astro and gets mixed up with a mob who's robbing a bank.
| Name | Type | Role | |
|---|---|---|---|
| Barry E. Blitzer | Writer | ||
| Jean Vander Pyl | Guest Star | ||
| William Hanna | Director | ||
| Joseph Barbera | Director |