Agents J and K are back...in time. J has seen some inexplicable things in his 15 years with the 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 to save his partner, the agency, and the future of humankind.
Personal low point in the series to me. Brolin does do a commendable job of playing a young Tommy Lee Jones, but the script doesn't deliver. Not only is it not a very good one, it just offers the same story. **Again**. This is three Men in Black movies in a row where the A-plot is totally encapsulated by one sentence: "Stop the creepy-crawly in a human suit from getting the jewelery." There's a supporting role alien that was pretty endearing though. _Final rating:★★ - Had some things that appeal to me, but a poor finished product._