Olie and Zowie will be meeting their Uncle Gizmo for the first time. However, aunts and uncles are people to be avoided (according to Billy, that is).; Olie can't decide what to be when he grows up.; Olie and Billy play with dad's new invention, even though he told them not to. Soon they find themselves in a ""sticky"" situation.
A storm ruins the Polies' plans, but Pappy manages to entertain Olie and Zowie with stories about his childhood.; Mrs. Polie tells Olie to put Zowie down for her nap; however, when Zowie starts to copy Olie's every movie, he realizes that he's in for some trouble.; The Polies hear a strange bump in the night. Olie and Zowie, believing it to be an evil space monster, try to hunt down the source of the sound, while Percy Polie tries to solve the problem in a more practical way.
While Olie and Zowie are baby-sitting Pappy, he tries to teach them a magic trick. The vanishing grandfather trick seems to work too well, though.; Olie's trying to hop through the entire house on one foot. Frustration rises as he keeps getting interrupted.; Olie decides that he wants to be just like dad. However, he learns that he might not have to change very much.
Olie and Zowie decide to make breakfast for their parents. However, what will they make and will it taste good.; Zowie fids a rock and wants to keep it as a pet. Even though her parents know that rocks are better when they're outside.; Papi's teeth come flying out of his mouth again. It's up to Olie to help Papi get them back.
Olie's getting ready for school. Zowie, as usual, is just happy to be with her big brother. But she's starting to get on his nerves.; Olie wishes he and Spot could be like his TV heroes Space Boy and Space Dog. Unfortunately, Spot doesn't seem as heroic as Space Dog.; It's time for the kids to go to bed, but they just don't seem to want to. Mom and dad are going to have a hard getting these two in bed.