The Odds (Boney, Itchy and Squeak) have vanquished their mortal enemy, Larry Harry, and his two sidekicks, but that doesn't stop these dastardly bullies from trying to compete against Squeak in a radio-controlled airplane contest. But everyone is blown away when the winner turns out to be a girl. And not just any girl. Samantha Moss is eerily similar to Squeak — she can match him note for scientific note.
Itchy isn't too keen on inviting her into the clubhouse, but it turns out the boys need all the help they can get: aliens have landed in their town . . . and have cloned the Odds! There are Itchys and Boneys and Squeaks all over the place.
It takes all their imagination and scientific know-how to come up with a plan to stop the clones — but will it work?