The Men in Black have always protected the Earth from the scum of the universe. In this new adventure, they tackle their biggest, most global threat to date: a mole in the Men in Black organization.

When Earth is taken over by the overly-confident Boov, an alien race in search of a new place to call home, all humans are promptly relocated, while all Boov get busy reorganizing the planet. But ...

A poor construction worker, who struggles to keep his son in private school, mistakes an orb he finds in a junkjard for a toy which proves to be much, much more once the young boy starts to play ...