Plot summary

Five long years have passed since the retirement and neuralyzation of Agent K, and now, the mysterious death of a harmless alien calls for the help of Agent J and his unstable new partner. In the meantime--as the Kylothian shape-shifting alien, Serleena, and her double-headed minion are in search of the enigmatic Light of Zartha--inevitably, the Agency will have no other choice but to reverse K's neuralyzation, in high hopes of solving this baffling conundrum. However, once more, time is against them--and what is even more disheartening--the dangerously seductive Serleena is after them, using a powerless human as leverage. Will the agents manage to find the Light of Zartha and save the earth, again?—Nick Riganas