Bhudevipuram has a long history of families warring over ancestral property. However, when its headman’s family falls into the same trap, his younger son decides to break the village’s age-old legacy.

A police chief hires an old friend, who is an international spy, to help him search for a wanted suspect in the Philippines. When the chief dies, all evidence points towards the spy, and he must go to extremes to defend himself.

Karuppusamy (Karan) is a happy-go-lucky guy who is a small-time contractor for cycle stands. When not at work, he kills time with his friends, taking part in their mimicry troupe where he is famous for his Rajini look-alike acts. Life goes on for the protagonist until Raasathi (Meenakshi) stumbles upon his life. An aspiring medical student, she relates Karuppusamy’s benevolence to her late mother’s. Soon after, they both become victims of the stupid cupid’s bait.
Although in love with the uncle, Karuppusamy insists that education should be her priority over romance. Besides, their love affair wreaks havoc in Raasathi’s upper caste family, which is known for cast prejudices.

Dorai (Arjun) is a do-gooder don, but a police force led by ACP Easwara Pandian (Prakash Raj) and his sidekick (Sathyan) are after him. However, the poor need him as he is a Good Samaritan running an orphanage. He has help from his friends Subramani (Manivannan) and Ayyanar (Vadivelu). Dorai has a problem: his mother (Sujatha) doesn’t approve of his ways and feels he is just a loutish goon. There is also TV journalist Anjali (Mallika Kapoor), who is in love with Dorai because of his daredevil ways. Dorai has a past: he was just an honest-to-goodness schoolteacher who ends up as the deathly Dorai after a fire ravages a school and kills several children. The incident forces him to take on the system of venal officials and politics. Now, Dorai’s biggest task is to nip a dark and dire politician who wants to bomb the city. The rest, as they, are all cinematic clichés.

Mayandi (Rajkiran) was a brave and strong man who was respected by villagers. Mayandi was in love with his cousin Solaiyamma (Meena) and wanted to get married to her but they have nothing in common. The soft-spoken Solaiyamma was afraid of him. In the meantime, Murugesan (Raj Chander), a city youngster, fell in love with Solaiyamma’s little sister Kasthuri (Saradha Preetha). Later, Mayandi and Solaiyamma had an arranged marriage but Solaiyamma was still afraid of him after the marriage. One night, Mayandi came drunk in his house, molested the innocent Solaiyamma and brutally raped her. Since that night, Solaiyamma began to avoid Mayandi and she didn’t talk to him anymore. A few months later, Solaiyamma discovered that she was pregnant. Mayandi and Solaiyamma were unable to understand their feelings. Finally, Ponnuthayi (Srividya), Mayandi’s adopted mother, brought them back together. Unfortunately, Solaiyamma died after giving birth.

A thief meets a beautiful girl, who is searching for the man she loves, en route to a city to sell a necklace he stole; the thief offers to help her but ends up falling in love with her.

A thief is caught in a race against time when after committing the biggest heist of his life, he wakes up the next day with no memory and has to find a coin which might be the root cause.

A 14-year-old forlorn Kalyani delivers a boy in seclusion, fearing societal backlash and incapacity. She abandons him, heavy-hearted, placing him inside a moving goods train, which a slum dweller finds. The slum procures him as their common child, naming him Surya and they collectively raise him honest. He grows up, intolerant of injustice especially to the poor, though he wonders why his biological mother had impetuously abandoned him. A yellow shawl was the only identity he had of his mother, which she had placed him in when casting him away.
Devaraj, a powerful don who is kind yet feared by most in the society, also fights injustice, but by violent means. Ramana, an auxiliary of Devaraj’s, whose abusive demeanour led Surya to attack him, succumbs to his death. Surya gets apprehended for this. An exasperated Devaraj soon perceives Ramana’s felony, realises Surya’s cause was genuine and bails him out. Thus, Surya and Devaraj get to understand each other as both share similar social ideologies despite getting off on the wrong foot. Devaraj declares Surya his “Thalapathi”, a best friend.

Parthasarathy (Karan) is the son of a cook and a political science graduate. He aspires to become a Minister. His mimicry skills get him acquainted with the Chief Minister, who comes to his village for a meeting. He impresses him to become local leader of the party. This incurs him the wrath of Thamizh Sakthi (Nasser), a leader of the same party, who wants to promote his younger brother.
Turn of events lead to Thamizh Sakthi helping Parthasarathy become MLA with a promise that he should be with him and support him in all shady deals. As it happens Parthasarathy now becomes a Minister. Their corrupt ways earn them money.

Two brothers envy their step-brother Shiva as he is their father’s favourite. Since their plan to deal in drugs and arms is opposed by Shiva, the two brothers hatch a devious plan to bump him off.

Ajith is Red (it stands for Revolution, Education, Development), an orphan who has since grown up to be the local don in Madurai. Naturally he possesses a heart of gold and when not bashing up bad guys, he spends his time forcing schools to accept students without donations and taking care of orphans. Cheeni (Salim Ghouse) is his biggest enemy. Red falls for Gayatri (Priya Gill), the daughter of his friend and confidante Narayanan (Manivannan) and helps her without her knowledge. She too likes him but wants him to give up his life of violence. Meanwhile, a reporter (Rajesh) for Ananda Vikatan begins to serialise Red’s story under the name Aadi and it becomes quite the rage among readers

The film begins a year after the events which occurred in the prequel Saamy.
DCP Aarusaamy “Saamy” (Vikram), who had been transferred out of Tirunelveli, leads a happy life with his now-pregnant wife Bhuvana (Aishwarya Rajesh), who intends to pursue IAS. However, the people who were asking what happened to Perumal Pichai (Kota Srinivasa Rao) assume he might be in Colombo Sri Lanka with his second wife and three sons: Mahendra Pichai (O. A. K. Sundar), Devendra Pichai (John Vijay), and Raavana Pichai (Bobby Simha). Raavana leaves for Tirunelveli and finds out that Saamy killed his father. Saamy applies for a transfer to Tirunelveli to stop Raavana, which is approved.