extraterrestrial beings

When the residents of a far-distant planet send a message to Earth asking for someone to meet with them, the President of the United States asks Stanley Lambchop, an all-American boy, to be his ambassador.

When their spaceship crash lands on Earth, Ploo is captured by the Army and taken to the mysterious Area 51. While her brothers, Lek and Klatu, try to rescue her, Ploo uses her ESP to make a new friend.

The kids at Bailey School investigate the rumor that the coordinator of the annual Halloween party is an alien intent on stealing their town's candy.

After Susan sees Mr. Smith the substitute teacher peel off his face, she knows he's an alien and only Peter believes her; together they work to save the class from Mr. Smith's horrible plans.

Seventh-grader Duncan must find out which of the four new teachers in his school is an alien before his brains get fried to a pulp.

Rod and his bratty cousin Elspeth are snatched into another dimension by the monstrous alien Smorkus Flinders.

Peter, a typical seventh-grader, finds himself touring the planet with his friends Susan and Duncan, and with three aliens in disguise. Their mission is to file a report that will report the Earth's future in the universe.

The Bailey School kids are going to find out if the art teacher with braces on her teeth is really an alien from outer space.