Sunspot and the Great Red Spot is the first half of the twenty-second episode of Ready Jet Go!.
Sunspot is determined to get to Jupiter to meet his fellow pet aliens, other members of the Red Spot Club. The Club is thousands of years old. They meet annually at an exact time to observe and celebrate the Red Spot. But, mechanical problems with the family wagon/saucer may thwart the trip. The kids and Celery do everything they can to get Sunspot to Jupiter and his Red Spot Club meet-up.
The Great Red Spot is an enormous, high-pressure storm akin to an Earth hurricane that has been raging on the surface of Jupiter for at least 400 years.
- It is revealed that Sunspot has an ancestor named OldSpot, who founded the Red Spot Club.
- There is an error in this episode: when Sunspot is about to go outside the saucer, Sean and Sydney are in their regular clothes instead of their spacesuits.