Kathiresan aka Kaththi, a criminal, escapes from the Kolkata prison and comes to Chennai, where he comes across his doppelganger Jeevanandham, fighting for his life after being shot at by unknown men. Kathir decides to pass off as Jeeva and make away with a lump sum amount but once he realizes who Jeeva really is, Kathir turns a crusader.

Dans les villages où l’agriculture perd de plus en plus sa place suite à l’implantation des entreprises étrangères. Kathiresan va se lancer dans une lutte pour empêcher ces détracteurs d’envahir son village.