The film begins outlining the sour relationship between the two villages, Singampatti and Puliyampatti. Seema Raja (Sivakarthikeyan) is a jobless youth from Singampatti, born in a family with a long lineage of brave people; the main one being King Kadambavel (Sivakarthikeyan). He does good things in the village for likes on Facebook and pays other villagers to treat him with respect. He hangs around with his sidekick/accountant, Kannaku (Soori).
The principal from a nearby school invites Seema Raja’s father (Napoleon) to the awards ceremony at the school. However, due to his father’s busy schedule, Seema Raja offers to go instead. Here, he meets Sunthanthira Selvi, a sports teacher and a Silambam expert and immediately falls in love with her. He then goes around following her, trying to court her.

Three men and their accidental meeting on Napier Bridge will change their lives forever.

The film is set in the late 90s revolving around the life of a young high range rubber planter from Mundakayam and his rivalry with a high ranking officer in the Kerala Police.

Sami Srinivasan (Srikanth), a Brahmin boy, and his friend Karunakaran (Vishnu) grow up in the Royapuram slums and attend the same school. Karuna is a rough and tough boy, but Sami is bit naive. They are close buddies. Once, they see their class teacher Roja (Pooja Umashanker) being brutally murdered before their eyes by a gangster. Dejected at local police not taking any action, Karuna kills the gangster but gets caught by cops. Sami tells the police that Karuna committed the murder. Though both are bailed out of trouble, enmity brews between them. As years roll, hatred increases: Sami is against Karuna. Trouble erupts when Sami loves Karuna’s sister Malar (Poorna). In the meantime, Shruthi (Poonam Bajwa) loves Karuna. What happens between the two forms the rest of the film.

The movie begins with Chandu (Siddharth Narayan) and Siri (Shruti Haasan) as childhood friends. Chandu and Siri call each other “Faltoos” and “Killer”, respectively, affectionately. Their friendship remains intact even as they grow up. Chandu who was sent to Mumbai to do MBA, instead learns music and returns home which leads to agony of his father. However, Siri convinces Chandu’s father that it is her responsibility to take care of Chandu’s career. They go for an audition there they get a fight with a band and he is sent out of the audition. Prior to that, Siri accepts the love proposal by Uday (Navdeep), who lives in US after consulting Chandu. Later, Chandu and Siri accidentally meet their common friend in college, Ritu Sharma (Hansika Motwani) and Chandu falls in love with her at first sight. Chandu starts spending time with Ritu to impress her, but Siri feels that she is being avoided. Siri decides to leave for a dancing School at Chennai. Meanwhile, Ritu accepts Chandu’s love proposal. When Siri is about to leave, Chandu apologises her that he had not noticed that she was being avoided. At the same time, Uday comes back from US to surprise her. Hence, she decides not to leave.

Jealous of his mother’s attention toward his brother, Sathya befriends Mandhiramoorthy, a political gang leader whose brother hates Sathya. Meanwhile, a policeman plans to take down the gang.

The people of Wakanda fight to protect their home from intervening world powers as they mourn the death of King T’Challa.

Amavasai (Sathyaraj), homeless but egotistical, gets acquainted to politician Manimaran, then MLA of the Palladam constituency, near Tirupur (Manivannan). Amavasai helps Mani with some petty tasks during election campaign and meetings. Amavasai grows into a well acclaimed helper and first associate for Mani. Meanwhile, Amavasai falls in love with Thayamma (Kasthuri) and one day he gives her some drug making her groggy and then rapes her. Mani instructs Amavasai to stand for MLA election as independent candidate in the upcoming general election with his support as Mani was not given his party ticket. Amavasai wins by a huge margin and becomes the MLA. He forgets his relationship with Thayamma and rejects her pregnancy and child. Thayamma and her parents move out of that village to avoid humiliation. Soon Thayamma gives birth to a boy and dies. Amavasai forgets Mani’s help and forces him in a role under him. He changes his name to Nagaraja Cholan for gaining social status. He marries the only daughter of the rich local landlord, Sivakami (Sujatha) and even cheats him of his palace. Over the years, Amavasai grows into a highly influential and corrupt politician with high criminal affluence. He builds a strong political empire through shortcuts. His ego and pride to remain in power make him kill many. He wins and remains as MLA of Palladam in all the general elections for next 20 years.
Now, Amavasai’s son Thangavel (also Sathyaraj) through Thayamma comes out as a new police constable, who is deputed in Amavasai’s constituency. Thangavel is betrothed to a beautiful +2 studying girl Kuyili. They both fall in love. But during the official wedding engagement, a dispute arises over the people asking about his father’s identity and the wedding is cancelled. He asks his grandparents about his father, but they remain silent. So he accuses his mother to be a slut, and his granddad bashes him and tells all about Ammavasai. Thangavel now comes to know of his real father and about his betrayal of his mother and also his corrupt practices. The state assembly is about to be dissolved prior to general elections. But the ruling party leadership does not wish to give a seat to Amavasai again, as he has minimal chances of winning, due to his corruption, illegal activities as MLA. So he invokes a cruel caste riot in his constituency and pretends to stop it. So he is given the ticket again. Thangavel is posted as riot police head constable to stop riots and to protect Ammavasai. He saves Ammavasai from an assassination attempt. He then goes to Ammavasai’s house and reveals his identity. He challenges his father that he will stop all of his illegal activities. Then Thangavel gets posted as Law and Order Sub-Inspector in the same area. The story further revolves around how Amavasai and Thangavel proceed in their battle and finally who wins the battle.

Mumbai Police commissioner Ajay Bhardwaj announces the end of the “Mafia Raj” in the city, to try to bring peace to the city’s streets. However, a ruthless south Indian named Vijay Surya comes to the city, aspiring to be the most powerful Mafia Don there. Staying in Dharavi with his friend, he is introduced to a local politician Laalu, who is in trouble and offers him help. He recruits a portion of the gangsters and criminals living in Mumbai led by Naseer to work under him. Surya’s henchman Shakeel manages to kill a witness of Laalu’s crimes in the jail where he is kept in, winning Laalu’s friendship.

A straight forward sub inspector is handed a murder investigation above his pay grade, during an ongoing tiff with one of his unscrupulous superiors.

Pandi is a sincere and dedicated worker who will not get angry, stressed out or nervous even when he is provoked by others. The film follows the story of this honest man as he commits in everything that he does.

Thirumoorthy is a corrupt politician who plans to kill the prime minister as he lusts after his position. However, Sekhar, a young police officer, creates hurdles in his path.