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CIA operative Kevin Pope (Chris Rock) is suave, brilliant and right on the verge of completing a top secret mission to keep a rogue nuclear weapon off the black market when he is suddenly killed. With the clock ticking and no other options available, the CIA reluctantly enlists Kevin's long-lost identical twin brother Jake to take his place. Jake is the mirror opposite of Kevin, a working class Joe, it's a comically uphill challenge to train him as a secret agent and get him in the field. Wikipedia