With the magical force of the ancient Tablet of Ahkmenrah starting to deteriorate after the events in Night at the Museum: Battle of the Smithsonian (2009), Larry's reanimated exhibit friends gradually lose their powers. To get to the bottom of the mystery, he and a handful of the exhibits travel to the British Museum in London, seeking enlightenment and a radical solution. However, the question remains. Can Larry survive one last night at the museum before it's too late?—Nick Riganas