When twelve-year-olds Madison and Felix kidnap him, Ethan learns that the Earth has been taken over by aliens and that all the adults in the world are under mind control.

Bob and the team have a job to do at the new space-themed restaurant: there may be an alien loose in Spring City.

Twelve-year-old Arcturus Betelgeuse Chambers' quest to find life on other planets seems at an end when his parents decide to move to Las Vegas, but while they look for a house he stays with his neighbor, an astronaut who soon becomes a friend.

"Zack McGee and his alien friend, Amp, discover that the alien invasion is underway"--

When aspiring author Josh Higgins learns that his favorite author is coming to town, he and his sister Maggie convince fantasy writer P.L. Cuthbertson to take them to the magical medieval land of Wyrd World, where they find real trouble.

When a spaceship lands in the small town of Vern Hollow in 1956, juvenile delinquent Jack Creedle and prim, studious Isadora Shumway form an unexpected alliance as they try to keep a group of extraterrestrials from stealing eccentric Uncle Bud's space travel machine.

Cora wakes up in a cage on an alien planet where she meets the Kindred, her mysterious alien captors, and along with other teenager abductees must find a way to escape back to Earth.

In Central Park, Zack and his dad encounter an alien who has lost his spaceship, which has been towed because it was illegally parked.

After facing off with the Mogadorian ruler and almost being annihilated, the Garde go into hiding. They must learn to master their Legacies and learn to work together as a team. When they receive a sign from Number Five -- a crop circle in the shape of a Loric symbol -- they know they are close to being reunited. But could it be a trap? Time is running out, and the only thing they know for certain is that they have to get to Five before it's too late....

Zack, his father, and Spencer fight to save the world from a rude, bossy, and hungry package of freeze-dried spores purchased at The Orville and Fanny Shlectwasser Museum of Air and Space.