A group of astronauts gain superpowers after a cosmic radiation exposure and must use them to oppose the plans of their enemy, Doctor Victor Von Doom Balthazar Blake, master sorcerer and apprentice of Merlin, must find and train Merlin's descendant to destroy Morgana le Fey, the darkest sorceress of all time. Agent J travels in time to MIB's early years in the 1960s, to stop an alien from assassinating his friend Agent K and changing history. Daniel accompanies his mentor to Okinawa who is off to see his dying father and confront his old rival, while Daniel inadvertently makes an enemy of his own.