The story starts with floods at Ranga Saipet in Warangal District. Houses, trains, and people inundate in floodwater. Siddharth (Mahesh Babu) and his friends save the people up to their maximum effort. Eight of his friends assist him in the rescue. On the other hand, the Chief Minister (Kota Srinivasa Rao) recommends the candidature of Pappu Yadav (Irfan Khan) for Assembly Elections. Pappu is a goonda who wishes to earn big through politics and power. To get the attention of people, he announces a sum of Rs.5 crore for flood victims.

A young man gets into trouble in a foreign country.

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.

Nandha (Nandha Durairaj) is an upright sub-inspector of police who has been transferred 15 times in three years. He is then transferred in a police station based in Pollachi. There, Police Inspector Pandian (Natarajan Subramaniam) is in the pay of Minister Periyannan (Rajagopalan), who runs in own government in the place. Nandha is shocked to note that Pandian and the entire police department are corrupt. Thereafter, Nandha tries hard to enforce the order. Soon, both policemen clash. Pandian becomes an honest policeman after Periyannan’s men attempt to kill him, and he is revived with blood transfusions from the public. However, Nandha does not believe that he has truly changed. After a fellow honest sub-inspector gets killed by Periyannan’s men, Nandha blames Pandian, and through short routes, becomes inspector himself. He arranges for Periyannan and his men to clash with Pandian, but in the ensuing fight, Pandian kills them all, while Nandha walks away.

Shankar is an orphan raised by a sincere police officer named Raja Rao. His son Bharath accidentally kills a kid and Shankar takes the blame on him. Shankar is imprisoned and Raja Rao warns him not to meet him again. After graduating, Shankar is employed as a circle inspector of police. He is popularly referred to as ‘Encounter’ Shankar because of his track record as an encounter specialist.
He is transferred to Bukkapatnam town in Tadipatri, Ananthapur district. He is assigned the task of halting the illegal businesses of Damodar, an influential crime boss whose dream project is to build a power plant. Using his wits, Shankar destroys all the three main businesses of Damodar by trapping their respective in-charges. He brings a stay on the power project by bringing few vital witnesses before the court of law, thereby earning Damodar’s ire. On a parallel note, Shankar loves a sweet shop owner named Saroja who reciprocates her feelings at a later point of time.

When giri marry’s her sister to a man in chennai and comes to visit the city his friend his brutally murdered by gangsters. He decides to murder the three gangsters ruling chennai to make the city a better place.

Ravi Teja plays a young man desperate to become a police officer. He winds up getting embroiled in a plot to pose as his lookalike in order to re-capture an infamous criminal from rogue cops.

Marudhamalai (Arjun), a police constable, goes to work in the village of Nachiapuram after passing his police exams and getting a merit. Here he meets ‘Encounter’ Ekambaram (Vadivelu), his senior officer. He is asked to do all sorts of work for him, and one day, Marudhamalai loses a convict on the way to the court due to Ekambaram’s soft heart. He then is to clean the floors of the inspector’s house and there he falls in love with Divya (Nila). Then, later in the market, after Ekambaram is humiliated by a beggar, Marudhamalai sees Maasi (Lal), the ‘boss’ of the city, killing a person who stood for a candidate in the elections. Then the election commissioner comes to the place, and he discovers that elections have not been held for 16 years in the city due to Maasi’s opposition.

A seemingly down-to-earth guy Arun (Arvind Swamy) leads a life of a computer hacker by day and thief by night. When he meets Madhu (Isha Koppikar) whom he fancies, he wishes to turn over a new leaf. But Arun’s rogue brother, who has been blackmailing him since young to do his dirty deeds, does not think likewise. A deep love-hate relationship between them which unfolded during their childhood days traps Arun into a life of crime. How Arun chooses between his family and love forms the crux of the story.

An aging Chinese immigrant is swept up in an insane adventure, in which she alone can save the world by exploring other universes connecting with the lives she could have led.

A gang has kidnapped a girl and several police officers, including Karthik (Sibiraj), who is attempting to rescue her. During a shootout, one man from the gang and a police officer Arul (Raghav Umasrinivasan), who is a good friend of Karthik, are killed, while Karthik gets injured. He is put out of action and suffers from posttraumatic stress disorder.
Subramani (Idoh) is a trained military dog who has the potential to nab culprits and to decipher a crime scene. After its owner, an army officer, is shot dead, Subramani is returned to the officer’s father in Coimbatore, who is a neighbor of Karthik. The neighbor leaves the town and requests Karthik to provide shelter to Subramani during his absence. Karthik denies the request but provides shelter after seeing Subramani being troubled the small kids in the neighborhood. Karthik learns about Subramani and becomes good friends with it.

An encounter specialist’s success in hunting down and eliminating criminals takes him to the holy city of Rameshwaram, where he will face the biggest threat of his career.