The date helps to improve Marshall's relationship with Sam.
One night, Charlie goes out with Sam and takes her to see the rock band, Malice, which Marshall had told him he wasn't allowed to go to. After the initial shock, they each realize they must live out their lives as each other, and Marshall heads off to school to deal with tests, bullies, and hockey practice, while Charlie assumes his father's role as a Vice President from an 11-year-old's viewpoint. It is revealed that the skull possesses supernatural magical powers, and after they both express a wish and touch it, Charlie grows up into Marshall's body, and Marshall shrinks into Charlie's body. While he is holding the skull, they get into an argument about how they wish they could be in each other's bodies. Tensions run high in the family since Charlie can't understand why Marshall can't be more involved in his life. When Marshall returns, he takes Charlie for a few days while his mother, Robyn, and stepfather, Cliff, are on vacation. He puts it with one of Marshall's purchases, so that he and his accomplice, Lillian Brookmeyer, can make a switch. At the same time, an art thief named Turk tries to purchase the skull but has to find a way to smuggle it out of the country.
He and his girlfriend, Sam, are on a trip to Thailand to purchase exotic merchandise. He is divorced and has an 11-year-old son named Charlie, whom he has little time for. Marshall Seymour is Vice President of a Chicago department store, in charge of buying. In Thailand, a pair of thieves steal an ancient skull from a Buddhist monastery.