When teenage geniuses Mitch Taylor and Chris Knight, working on an advanced laser project, learn that the military wants to use it as a weapon, they decide to thwart the plan.

Ryan Richmond is an eccentric teenager living with his mother, father, sister and brother in the Holiday Inn they own in Sunnyvale, Arizona, the prune capital of the world. Is it any wonder that he wants to go to Saudi Arabaia for college and leave Sunnyvale far, far behind? He spends his days at school with his sex-obsessed best friend Dan Forrester and lusts after Lisa Winston, the sexy lounge singer who his parents have hired to perform at the Holiday Inn. Stuck without a date for his brother's wedding to a senator's daughter, Ryan goes to a computer dating service, which asks him such questions as "Can you breathe foreign substances?" Soon, Ryan is told that he may be an alien stuck on Earth along with thousands of others. Soon, Charles and Edna Pinsky show up and tell him that he may an alien prince meant to lead his brethren home. And that's when things get out of control...