Agent J is sent to find Agent K and restore his memory after the re-appearance of a case from K's past.

Agent J travels in time to M.I.B.'s early days in 1969 to stop an alien from assassinating his friend Agent K and changing history.

A police officer joins a secret organization that polices and monitors extraterrestrial interactions on Earth.

After an eye-opening encounter of the third kind, the secret MiB organisation's newest recruit, Agent M, finds herself under the wing of the heroic Agent H in cosmopolitan London, when a shape-shifting duo of intergalactic assassins executes an alien aristocrat. Now, with a devastating super-weapon of mass destruction hidden somewhere on Earth, the Men in Black will leave no stone unturned to retrieve it; however, heavy clouds of mistrust and a scent of betrayal envelop the once-incorruptible agency. Is there a well-placed mole in their midst?