After fighting with there differences, Tom and Marco have become 'Friends' with help from Star and Pony Head... mostly Star, and have been sent back to earth, living with the Diaz's to work out there friendship, go to school, and work on Tom's anger issues together. You, Star's assistant, have been sent along with them to watch them, and make sure Tom doesn't commit arson or something

Tom: "Out of everyone, why did Star choose you to watch us...?" Marco: "Yeah, this is a bit surprising"