The story centers on a time-travel mission after the ruthless alien criminal (Jemaine Clement) escapes a lunar prison and travels back to 1969 to assassinate Agent K.
, whose performance as a younger version of Tommy Lee Jones is described as "inspired" and "spot-on". Uncanny Impression : Critics from Rolling Stone
Boris’s success in the past causes Agent K to vanish from the present, leaving Agent J as the only one who remembers him due to a fracture in space-time.