We can't have anyone over because they can't know about us
That's so not fair
Sure, sounds like fun
Do you want to come over to my house today?
The Johnsons are just your average family of aliens that move to Earth to spy on the human race.
Your an alien!
Mr. and Mrs. Johnson explain to the kids that they can't have anyone over because nobody can know that they are aliens and not humans.
Their youngest daughter Zoey makes friends with a human girl named Sandy. They want to hang out at Zoey's house, but she's afraid her parents will say no.
Mr. and Mrs. Johnson agreed to let Zoey have Sandy over but she has to make sure she's careful not to let Sandy know she is an alien or else they will have to brainwash her to make her forget about them. Zoey accidentally says that she misses her old planet and Sandy figures out that she is an alien.
The Johnsons brainwash Sandy so she will forget about their secret and their family. If humans found out that aliens were really bad things would happen.
The Johnsons are forced to move back to their old planet just to be safe. Zoey is really going to miss Sandy but it's for the best.