Andy and Terry live in a 78-storey treehouse. (It used to be a 65-storey treehouse, but they just keep building more levels!) It has a drive-through car wash, a courtroom with a robot judge called Edward Gavelhead, a scribbletorium, ... and an open-air movie theater with a super-giant screen... which is a very useful thing to have now that Terry's going to be a big-shot movie star! After Andy gets cut out of the movie, he and Terry have a huge fight and decide they don't want to be best friends anymore. But with a herd of sneaky spy cows out to steal all their ideas, can Andy and Terry make up before it's too late?