Mindy has finally turned 5 and is super excited that she is now officially allowed to go to space. However, when the kids come over to take her, Mindy's friend Lillian has just come over and wants to have a tea party with Mindy!
When Jet finds out that the entire Earth doesn't have the same season at the same time, he's amazed. Then, when Mindy feels bad that she's the smallest kid in the group, Jet gets the idea to shrink the rest of them down to her size!
Mindy is impatient for winter to come to ice skate, so Celery flies the kids to gather ice from Saturn's rings! Then, Jet starts working on another model of our solar system, and Sean becomes obsessed with creating an accurate map!
While making a cake, Carrot and Mindy are short one ingredient and head to the store in the Family Wagon. Then, Mindy confesses to Sydney that she likes the idea of going somewhere in space, but isn't sure where to start!
Mindy is told to go to bed when the Sun goes down, but she doesn't want the Sun to set on the fun day that she's having with her friends. Then, Mindy watches the Sun set and tells Jet and Sydney it moves across the sky every day.
Sean has been looking forward to his Space Scouts observatory sleep-out all year, and now it's finally here! Then, a total eclipse of the Sun is happening in Boxwood Terrace, and all the DSA scientists are excited to observe it!
Jet takes the kids on a saucer tour to discover all the ways water can be found; Sydney needs help coming up with a good story to enter the Commander Cressida story contest.