Suruli (Dhanush), a local rowdy in Madurai, is asked to leave the city for a month as he landed in a trouble after killing a businessman.

Around the same time, an NRI comes with an offer that if he works for Peter Sprott (James Cosmo), a politically affluent honcho in London, for a month, he would get plenty of money.

Suruli agrees and starts working for Peter, whose nemesis is a Tamilian gangster Sivadoss (Joju George).

Suruli quickly rises as a gangster, and also falls in love with a Tamilian singer Attila (Aishwarya Lekshmi).

Peter also wants the bill BICORE, meant against the immigrants, to be passed in the parliament, and trying to eliminate Sivadoss.

Due to certain incidents, Suruli is forced fit against Peter, his boss. What happens next?