
Season 22, episode 15
The Scorpion’s Tale
- 23 min
During a field trip, Lisa discovers desert water that makes usually combative creatures get along; after getting kicked out of the retirement home, Grampa comes to live with the family.

Season 22, episode 15
During a field trip, Lisa discovers desert water that makes usually combative creatures get along; after getting kicked out of the retirement home, Grampa comes to live with the family.