Deep in the Dovre mountain, something gigantic wakes up after a thousand years in captivity. The creature destroys everything in its path and quickly approaches Oslo.

The film features Captain Vijayakanth in the role of a bank officer named Mahendran who is transferred to the branch of Village Nilakottai to sort out the perplexing situation of bank fraud carried on by a big shot Marthandan (Debutant Ramki). Over there, he happens to find out that Marthandan has borrowed loan of worth Rs.250 million in the name of villagers.
Mahendran and his colleagues (played by Sriman and Ilavarasu) approach Marthandan to return the money that he had illegally borrowed. When refused, he assures of arresting Marthandan and the very next day, Mahendran and his colleagues are pushed down in shock for the entire bank is burnt down and they are dismissed. Now, Mahendran together with his mates tries to reveal the true color of Marthandan and prove of their innocence.

A young man gets sucked into an adventure as he searches for his lookalike.

A looming gangster after witnessing a bone chilling event, stands up against his father’s prejudice.

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.

The film revolves around two families hailing from the South Indian state of Kerala who have spent some important years of their lives in the Middle East.

An NRI from Canada travels to Chennai to start a property business. As his company starts doing well, he realizes he is he being cheated by his most trusted people, and gets imprisoned for fraud. What happens next?

Kathir (Bobby Simha) has an interest for Anbu (Tanya Ravichandran), but due to family situations, she gets hitched to Karuppan (Vijay Sethupathi). What does Kathir do, to separate Karuppan and Anbu, and does he finally get to marry Anbu?

The movie is about the journey of a Malayali youth Anwar (Prithviraj) into the clutches of anti-social elements. The protagonist has another hidden agenda in joining the terrorist outfit. The movie opens with visuals of the Coimbatore bomb blast and the introduction of a special team under Stalin Manimaran (Prakash Raj) who arrests Babu Sait (Lal), a local community leader as a suspect in the bomb blast case. Meanwhile, Anwar, a Muslim youth is arrested while carrying with some Hawala money and is sent to jail with Babu Sait and his team.
Anwar performs his Namaaz daily five times. He is also fascinated by the terrorist activities of Babu Sait. Babu Sait helps Anwar in getting bail and interests him in his activities. Anwar is attracted towards terror acts and even successfully terminates two local drug dealers. Soon he becomes the most trusted and obedient right hand of Babu Sait. Anwar succeeds in planting a bomb in the police headquarters and is soon introduced to Basheer Bhai (Sampath Raj), who selects him to spearhead another big, but dangerous project of chain blasts. Their plans are to plant a series of chain blasts in Mumbai. Though Anwar goes on with their plans, he has a haunting flashback, which forms the twist in the story.

Rajalakshmi raises Ramu, an orphan, as her own son who in turn always protects his foster family. However, he must stop his malicious foster brothers from marrying off their real sister to a gangster.

Chandralekha (Srividya), a grieving mother, asks an ex-army man David Kumar (C. Arunpandian) to rescue her son Gunasekaran (Prabhakaran), who is locked up in a military prison. But at the same time, the hideous criminal P. K. Roy (Nassar) appoints the fugitive Pratap (Ramki) to kidnap Gunasekharan from the prison. Both leave for their missions respectively, not knowing what surrender holds in his past and the fugitive takes this personal.

Masanam (Prakash Raj), a local thug and criminal who kills people, slowly rises up the ranks to be a minister. Shakthivel (Nithin Sathya) is a die-hard fan of actor Vijay and studies in college. He falls in love with Masanam’s sister Thulasi (Sindhu Tolani) and challenges him (he has a reason for that), and a cat-and-mouse game ensues. What follows is a series of incidents between the two that leads to a melodramatic climax.