Archive of Our Own

Summary:

The cape canaveral mission was supposed to be the end but J accidentally dragged a 29-year-old young K after returning, Young K is stranded in 2012 with a dead time-jump device and a body failing from Chronal Tinnitus. As he collapses under the sensory torture of the future, he becomes a target for alien bounty hunters tracking his temporal stink.

​With the MIB administration and a cold Older K viewing the anomaly as a threat to the timeline, Agent J goes rogue. Forced into a caretaker role, J must shield his vulnerable, ailing partner from both the agency and the deadly hunters while waiting for the time jump device to recharge in a desperate race to reach the Chrysler Building before the paradox—or the MIB—claims Young K's life for good.