After sneaking off from their tour group whilst on a school excursion to a city museum, teenagers and best friends Michael and Sam, stumble upon a long forgotten secret hidden in the museum's lower levels.

Along with their snobby classmate, Krystal Mack, the teens get more than they bargained for after discovering that they are now somehow stranded in a parallel universe; a world with vast differences to their own.

Now together they must find a way back home, but time is running out!