A voice-over by RD (Anil Kapoor) introduces the four main characters: Ranvir Singh “Ronny” (Saif Ali Khan) who runs a successful business he inherited from his father. His younger brother Rajiv Singh (Akshaye Khanna) who mooches off of Ronny and is an alcoholic. Ronny is dating an upcoming model Sonia (Bipasha Basu), while his personal assistant Sophia (Katrina Kaif) appears to be secretly in love with him. Ronny is also involved in an intense competition with a rival horse-owner Kabir (Dalip Tahil). The film opens with a murder plot involving a car accident which Ronny narrowly survives. When Ronny loses money in a race because his jockey had been bribed by Kabir, Ronny plants a bomb in the jockey’s car and kills him, showing Ronny to be a ruthless businessman. Later, Ronny also destroys Kabir when the latter offers him money to buy his business, which is in debt.

Jambhavan movie is about Velan (Prashanth) who is a responsible son of a village landlord (Vijayakumar). Adored by the villagers for his good deeds, Prashanth gets a shock when Vijayakumar informs that he is his foster son.A shocked Velan sets out on a mission to know about his past. He reaches Chennai and comes to know that his family members were killed by a dreaded gangster Deva (Vijayan). He had then vowed to kill him and his gang. In the name of Jambhavan, he starts to kill rowdies in the society.Suffering an injury in his head, Velan loses memory and is later adopted by Vijayakumar. He comes to know that his job was just half-done. The rest is how he puts an end to Fefsi Vijayan and his men coming to Chennai.

Rishi (Prabhas) is the son of Bhupathi (Krishnam Raju). Rishi is influenced by his father’s ideals and grows up just like him. Bhupathi does not want his son to take up violence and sends him to Bangalore for studies and to learn music. There, Rishi falls for an orphan Deepali (Deeksha Seth) and brings her to his house. During the festivals held in their village, Simhadri (Pradeep Rawat) sends thugs to kill Bhupathi and his family, but Rishi eliminates all the thugs. Bhupathi’s brother Jairam (Mukesh Rishi) joins hands with Simhadri so they can kill Bhupathi, Bhupathi’s wife Lakshmi (Rama Prabha), and Deepali. Simhadri tells Rishi that a local goon helped Jairam kill Bhupathi and his family. Simhadri soon kills himself. Some of Bhupathi’s bodyguards are still alive, including Raju (Supreeth). They assist Rishi to get revenge. Two years later, Rishi discovers that a goon named Stephen (K. C. Shankar) was doing illegal business in Hyderabad for a very long time.

The story is set in a rural area around Madurai, in the village called Paruthiyur, which still practices caste segregation as a result of the controversial Criminal Tribes Act imposed by the British colonists, where members of impoverished communities are stereotyped as generational criminals.
Paruthiveeran (Karthi) is a country brash whose inter-caste parents were ostracized by the villagers since his higher caste father married his lower caste mother. After his parents’ death, Paruthiveeran was mostly raised by his doting paternal uncle Chevvaazhai (Saravanan) who pampers and accompanies him in every misbehavior to keep him happy. Having grown up among his mother’s people, he is often arrested for petty crimes. His one ambition in life is to gain enough notoriety to be on TV news and to be thrown into Madras Jail. He often bullies Paruthiyur villagers for money and fun.

When the happiness of his family is held to ransom by a violent crime lord, Ram sets out on a quest to destroy his nemesis and his criminal empire.

Kodi and Anbu are look-alike twins born to in staunch political worker who immolates himself in protest for a good cause. Kodi dedicates himself to carry over the work of his late father to take his party to greater heights, while Anbu puts family first. When Kodi’s love for Rudra, a fierce speaker from the rival party begins to impede his political career, he also stumbles upon a scam that shakes his beliefs to unveil a flurry of events that brings Anbu into the mix of unexpected events!

The film opens and ends with jail sequences. In both scenes, Pazhanivel (Bharath) is seen behind bars. The happenings from his release and his reentry to the jail make the whole film. Pazhanivel, who comes out of prison, puts his sister Karpagambal’s (Kushboo) life on track through his heroics and goes back to jail as a martyr. Pazhanivel was put behind bars when he was 10 years old. He killed his father’s (Yaar Kannan) “keep”, who made his mother’s (Rekha) life a hell by exploiting her to cajole his “keep”. He went to jail, and his father turned an aimless vagabond. Karpagambal, who disowned him when he was sent to jail, grew up and got married to businessman Jeevanandham (Biju Menon). Karpagambal is living in a fool’s paradise, believing the man, who is actually an antisocial element. However, she need not worry about anything. Pazhanivel, who is now 25 years old, has come out of jail. He gets a job in his sister’s house, unearths Jeevanandham’s shady deals, reforms him, and puts his sister’s life on track. Meanwhile, he finds his lady love Deepti (Kajal Aggarwal).

When his brother is killed in a robbery, paraplegic Marine Jake Sully decides to take his place in a mission on the distant world of Pandora. There he learns of greedy corporate figurehead Parker Selfridge’s intentions of driving off the native humanoid “Na’vi” in order to mine for the precious material scattered throughout their rich woodland. In exchange for the spinal surgery that will fix his legs, Jake gathers intel for the cooperating military unit spearheaded by gung-ho Colonel Quaritch, while simultaneously attempting to infiltrate the Na’vi people with the use of an “avatar” identity. While Jake begins to bond with the native tribe and quickly falls in love with the beautiful alien Neytiri, the restless Colonel moves forward with his ruthless extermination tactics, forcing the soldier to take a stand – and fight back in an epic battle for the fate of Pandora.

In Dubai, a cop named Ruby interrogates an old man in an attempt to capture the dreaded don Michael. The man narrates Michael’s story.
Back in the 1980s, in Madurai, Tamil Nadu, Madura Michael is a notorious thug who works for a smuggler named Senthamarai and kills for money. He spends his time with his sidekicks played by Mahat and VTV Ganesh. Michael falls for Selvi, a girl from his town. Selvi rejects him initially, but later reciprocates his love. She asks him to leave his gangster life and move to Dubai, starting a new life. Michael half-heartedly accepts this. However, an enemy from the same gang backstabs Michael by turning into a witness for many murders committed by Michael and the latter is jail.

When an extortion gang spreads terror in Madurai, ACP Jayasheelan is assigned to bring an end to their wrongdoing. However, he is unaware that the mastermind of the crimes is someone close to him.

Balu (Vishal) visits his friend Karthik’s (Raja) home in Chidambaram after completion of engineering. He meets Hema (Meera Jasmine), Karthik’s sister, and they develop an affection which transforms into love. Kasi (Lal) is the local gangster in Chidambaram who is feared by the entire town. Balu, on his way back to his place, sees Kasi chasing a man with a sickle. When Kasi was about to kill the man he was chasing, Balu interferes and stops Kasi. An angered Kasi immediately tries to attack Balu, and to save himself, Balu retaliates by hitting Kasi. Only then, Balu comes to know that the person he hit is Kasi. To everyone’s surprise, Balu smashes Kasi in front of everyone and leaves.
Kasi is furious and wants to take revenge on Balu. Kasi’s men trap Karthik’s father and get to know about Balu’s native place. Kasi sets goons to kill Balu but gets shocked when he knows that Balu’s father is Durai (Rajkiran), a powerful man in Madurai, and it will be very difficult to attack them. Kasi leaves to Madurai and waits for the right moment to kill Balu and his family. Meanwhile, Balu meets Hema and her family at a temple. Hema’s father initially gets angry seeing Balu as he was responsible to bring trouble by hitting Kasi, but later, Balu convinces him. Both the families decide to get Balu and Hema married to each other.
One day, Kasi tries to kill Balu but instead attacks Durai. Durai understands that Balu is being targeted and decides to protect him. A localite in Madurai (Thalaivasal Vijay) hates Durai and his family and decides to help Kasi so Durai can get killed. Kasi decides to bring in violence during a temple festival day and utilize that opportunity to kill Balu and Durai. But Balu saves Durai and fights Kasi. In the end, Balu hits Kasi and leaves, challenging him to return if he still has guts to take revenge.

Abhiram or Abhi, (Sharwanand) as called by his friends and family, is the son of a multi-millionaire called GK (Nassar). He is born and brought up among currency and for him life is just a game and he is accustomed to lavish lifestyle. He dates several girls and one day he comes across Janaki (Kamalinee Mukherjee), a young, charming doctor. Abhi challenges his friends that he would make her fall in love within few days. Abhi invites Janaki for coffee after a dance programme and proposes to her.
Janaki, being an orphan, is very kind towards the poor people and is service-minded. She mingles with poor people and provides succour to them. But, being a rich boy, Abhi hates those people. However, Janaki’s free-spirited nature takes him very near to her and he develops an intimate friendship. At the same time, Janaki keeps maintaining some distance and does not express her love. Though she likes him, she cannot love him as he is not sensitive to the people and things around him.