Six young friends enter a Dungeons & Dragons amusement-park ride and are unexpectedly transported to a dangerous fantasy realm inhabited by dragons, sorcerers and strange creatures. Guided by the enigmatic Dungeon Master, each receives a magical weapon associated with a different heroic class. Hank, Eric, Diana, Presto, Sheila and Bobby must work together to survive, oppose the evil wizard Venger and search for a portal capable of returning them home.