Suzi, desperate to get McGee sent home, invites her parents for a visit to Camp Lakebottom. Soon, the siblings must work together to save their real parents from the thirsty pod plants. The campers train to be Sawyer's Zombie Scouts, unaware that their smoke signal exercise has summoned Sawyer's troop leader, Zombie Mom.Soon, the campers discover that Zombie Mom wasn't the only zombie alerted by the smoke signals and these zombies are hungry for brains!