Part 1
Part 2
Part 3

From a serious cop to a caring doctor, it is a transformation for Vijayakanth. But his mission remains the same and that is, eliminating the evil elements from the society.
A one-man army, Vijayakanth goes on a 'revenge' mode and bumps off the rowdy elements, who are disturbing peace and tranquility in the city. For the flip side, the movie has loads of punch dialogues explaining Vijayakanth's political ideologies.
Jyothirmayi plays a typical heroine in Captain's films. After a few encounters, she gets inspired by his good ways and falls in love with him. Malavika plays a house surgeon in the hospital whose love for Vijayakanth is one-sided. Pradeep Rawat, Pithamagan Mahadevan and Aryan play the villains.
Dr Sabarivasan (Vijayakanth) is a senior cardiologist in Chennai Government Hospital. He tries to set things in order in the Indian medical system. He successfully performs an open-heart surgery on a young girl which wins him admiration from Nandhini (Jyothirmayi).
Dr Sabari comes across a gang of dreaded gangsters and he helps the police nab them. In turn, he incurs the wrath of the Vajravelu (Pradeep Rawat), a real estate shark, whose brother meets his fate at the hands of police after being caught by Dr Sabari.

It's now a showdown between Dr Sabari and Vajravelu. Who prevails in the end forms the crux.