In an isolated hospital in the high ranges of Kerala, an autistic patient with special skills piques the interest of a psychiatrist, whose investigation into her past leads to startling revelations.

In 1971, amid rising tensions between India and Pakistan over the liberation war of East Pakistan, Pakistan navy, in a top secret mission, plans an attack on Indian majestic-class aircraft carrier INS Vikrant, to gain control over the waters of Bay of Bengal. They send their best-in-class submarine PNS Ghazi, but are intercepted by an Indian submarine INS Karanj (S21). An underwater attack ensues.

Three ex-salesman plan the ultimate car heist.

Siva (R. Madhavan) is based out of Srirangam and he comes to Chennai to join a college. He stays with his sister (Anu Hasan) and her husband (Raghuvaran). Siva does not like his brother-in-law and never talks to him, despite several attempts made by his sister to convince both.
Siva meets Priya (Meera Jasmine) during a bus journey, and it is love at first sight for him. He again meets her on a few more occasions and proposes his love, but she warns him to stop following her despite liking him. Siva understands that Priya’s brother Bhaskar (Atul Kulkarni) is a local goon, and he attacks anyone who follows his sister.

A former cricket player nursing his wounds of a failed relationship takes up the task of training his ex-lover’s daughter and in the process discovers his feelings towards his wife and her unrequited love for him.

The film is set in North Madras area where a Settu (Atul Kulkarni) used to employ Guna (Sampath Raj) for car seizure before he is double crossed by Burma (Michael Thangadurai), who takes over the hot-seat. Burma is aided by his girlfriend Kalpana (Reshmi Menon) and sidekick Boomer (Karthik Sabesh). Their mission is to seize 28 cars for Settu and raise money so that Burma can marry Kalpana. Meanwhile another gang of robbers led by a lady killer gets involved, leading to chase, abduction, double cross and killing.

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.