Milo loves spending time with his best friend, Jay. But when a new girl called Suzi moves in next door, Milo starts to feel left out. The jealous feeling gets stronger and stronger - until suddenly, a GREEN-EYED MONSTER pops up beside him! Soon, the monster is poisoning Milo's thoughts. It won't leave him alone! Can Milo find a way to free himself from the monster and repair his friendship?