Sit Ho Ching used to be an everyday white-collar worker who had no ambition and no plans for his future. Everything went smoothly until one day, when his boss set him up and his girlfriend cheated on him, he suddenly became a jobless single man, which made him rethink his past life of duties and routines. From then on, he decides to pursue wealth and fame by all means.
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.