曾因為劇本問題停工了一段時間。近日有媒體在片場拍到了喬許·布洛林（Josh Brolin）所扮演年輕時代「K探員」造型，這個角色的老年版依然由湯米·李·瓊斯（Tommy Lee Jones）飾演。

Men in Black, but nothing, not even aliens, perplexes him as much as his wry, reticent partner. But when K's life and the fate of the planet are put at stake, Agent J will have to travel back in time to put things right. J discovers that there are secrets to the universe that K never told him -- secrets that will reveal themselves as he teams up with the young Agent K (Josh Brolin) to save his partner, the agency, and the future of humankind.