Mary-Kate and Ashley, ready to perform in the Harrington magic show, hit a snag when Ashley's partner leaves her trapped in a box, and Mary-Kate's mind-reading horse disappears.
When Griffen, Corey, and Amanda get lost in the Maine woods and stumble upon a zombie camp, one of them becomes a zombie and the other two must rescue him.
Robin Dessart, know-it-all and bully, is the new kid in Jeffrey's class. Max, the third grade ghost, can stop Robin, but Max has some tricks up his sleeve and they lead to surprises.
Jeffrey's friend Kenny begins to think that the ghost Max might just be real after all. Will Max help Kenny get the lead role back in the school play?.
Jeffrey wants to spend Christmas with his ghost friend Max, but before the vacation begins they argue. Max disappears, maybe for good. Will Max ever return?.