Obsessed with the supernatural world, 4 ghosthunters search for the existence of supernatural activities in places rumored to be haunted. Unable to get any real evidence for their planned TV show, they decide to give up and apply for real jobs...until a challenge for a mall owner comes to them. The challenge: survive 24 hours in a haunted mall and they will receive US$ 50,000. Deciding that this is their final chance to get the evidence they need for their TV show, they accept. But what happens when they actually encounter supernatural forces out of their control?
When the magic powers of The Tablet of Ahkmenrah begin to die out, Larry Daley (Ben Stiller) spans the globe, uniting favorite and new characters while embarking on an epic quest to save the magic before it is gone forever.
Based on the real life story of legendary cryptanalyst Alan Turing, the film portrays the nail-biting race against time by Turing and his brilliant team of code-breakers at Britain's top-secret Government Code and Cypher School at Bletchley Park, during the darkest days of World War II.