Rangan (Karunas) works in a power loom factory owned by kin (Marimuthu). Rangan’s colleague loses her hand in a accident.
With no help given to the victim by the management, Rangan approaches Samuthirakani, who is the union leader.
Rangan asks Samuthirakani to intervene in the issue and get compensation from the management. While Rangan is not interested in Communism he is slowly attracted by the good works done by Samuthirakani and becomes a member of the union.
In a certain turn around of incidents Samuthirakani goes to jail, following which Rangan becomes the leader of the Union. What happens next forms the rest of the story.
Director Manimaran has kept the soul of the movie at the right place. Some of the characters are developed in an interesting manner.
However, the movie becomes preachy after a point. The role of the Union leader is tailor made for Samuthirakani who fits in it like a T.