Men in Black 4

Plot Synopsis
Agent K and J are sent to A.I. (Artificial Intelligence) Planet A.A.R.I.S. to retrieve a Special M.I.B. secretary agent (Agent Z), However it turns out Agent Z was an Akrareon Spy who had plans on releasing a gas that would petrify most of the world leaders so they can dig for Earth's riches and destroy mankind like mankind did to Akrareon's.

So its up to Agent K, J, and an entire Army of Men In Black to stop him.

Spin-offs
Adventures of Agent K and Agent J

Men In Black: The Animated Series