Arnold is accepted into a religious cult. Mr. Kotter and the three other sweathogs try to get Arnold to snap out of it. Eventually, he does and goes back to his former self, complete with his trademark laugh.
| Name | Type | Role | |
|---|---|---|---|
| Jim Mulholland | Writer | ||
| Mike Barrie | Writer | ||
| Ellen Travolta | Guest Star | ||
| Bob Claver | Director |