Elango and his friend Pulivetti Arumugam come in possession of a time machine and start profiting from it. However, their meddling with time prevents the death of a gangster, who begins to wreck havoc in their lives.
A cop with a connection to the criminal underworld finds his secret life exposed when he and his partner are caught stealing cocaine from a powerful drug dealer, a move that puts his son's life in jeopardy.
Ganesh clashes with a trio of criminal brothers when he tips off the police about them. When they try to seek revenge, they realize he has a score to settle with them too.
Aamir comes to Chennai with great hope but he becomes a pawn in the hands of a mysterious man who kidnaps his family and forces him to do what he wants.