
It’s been four years since Agents J and K saved the planet from an intergalactic disaster. Back then, they managed to thwart an alien threat that could have forever altered the course of Earth’s history. Since that day, their paths have taken different directions: Agent J remained active in the elite organization known as the Men in Black, while Agent K chose to retire and live a quiet, anonymous life working at the postal service.
However, peace in the universe is fragile and short-lived. A new threat looms over Earth—far more dangerous and complex than anything the agents have faced before. An alien enemy has put the planet’s safety in check, and this time, Agent K’s experience and knowledge are essential.
Agent J, now more seasoned but still impulsive, realizes he cannot handle this crisis alone. Aware of the danger ahead, he sets out on his most important mission yet: to find his former partner and convince him to return. The problem is, K no longer remembers anything about his past as an agent. After his retirement, his memories were erased, and he now lives as an ordinary human with no idea of the vast universe he once helped protect.