
James, an NYC cop, is hired by Agent K of a secret government agency that monitors extraterrestrial life on Earth. Together, they must recover an item that has been stolen by an intergalactic villain.

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.

The MIB tackle a mole in their organization.