In 2012, an alien criminal named Boris the Animal, a Boglodite, escapes from a maximum-security prison on the Moon and arrives on Earth, bent on taking revenge on Agent K, who shot off his left arm and captured him in 1969. He confronts K, who is with his partner Agent J, telling him he is "already dead". J then returns to MiB Headquarters to peruse MiB's files and discovers that K was responsible not only for capturing Boris, but for deploying the "ArcNet", a shield that prevented the Boglodites from conquering Earth and caused their extinction.
