Surya (Vijay) is a lawyer with right values, who tries to redress things the legal way. He falls in love with Priya (Chopra). His brother-in-law Shakthivel (Nassar), also an upright lawyer, is killed in the process of upholding justice. Surya's sister (Revathy) also meets a pitiful end at the hands of criminals. But Surya refuses to give up. His mission is to make the layman understand his legal rights and how he does so forms the crux of the story.
Kay and Jay reunite to provide our best, last and only line of defense against a sinister seductress who levels the toughest challenge yet to the MIBs untarnished mission statement: protecting the earth from the scum of the universe.
Joe Enders is a gung-ho Marine assigned to protect a "windtalker" - one of several Navajo Indians who were used to relay messages during World War II because their spoken language was indecipherable to Japanese code breakers.
When a virus leaks from a top-secret facility, turning all resident researchers into ravenous zombies and their lab animals into mutated hounds from hell, the government sends in an elite military task force to contain the outbreak.