Hoping for enough money to buy an above-ground pool, the kids work together to pull off a garage sale.
- Jenna Ortega as Harley Diaz
- Ronni Hawk as Rachel Diaz
- Isaak Presley as Ethan Diaz
- Ariana Greenblatt as Daphne Diaz
- Kayla Maisonet as Georgie Diaz
- Nicolas Bechtel as Lewie Diaz
- Malachi Barton as Beast Diaz
- Joe Nieves as Tom Diaz
- Carol Mansell as Fran 
The kids have a garage sale to raise money to buy an above ground pool. Harley revels that she has had her invention bag since she was six in this episode. Only the Diaz mom was not present for this episode. There was one guest star playing a customer at the garage sale.
- May 9, 2017 (Israel)
- June 9, 2017 (Portugal)
- June 17, 2017 (Brazil)
- June 18, 2017 (Latin America)
- June 23, 2017 (Hungary)
- June 30, 2017 (Poland)
| To view the Stuck in the Garage Sale gallery, click here.