Kay and Jay reunite to provide our best, last and only line of defense against a sinister seductress who levels the toughest challenge yet to the MIBs untarnished mission statement: protecting the earth from the scum of the universe.
Mike Sullivan works as a hit man for crime boss John Rooney. Sullivan views Rooney as a father figure, however after his son is witness to a killing, Mike Sullivan finds himself on the run in attempt to save the life of his son and at the same time looking for revenge on those who wronged him.
A rare mutation has occurred within the vampire community - The Reaper. A vampire so consumed with an insatiable bloodlust that they prey on vampires as well as humans, transforming victims who are unlucky enough to survive into Reapers themselves.