Ramu, a secret agent, is given the assignment to catch a terrorist group that sells confidential information to foreigners. He goes to Neela's house undercover to expose the criminals.

Marudhu tosses his look-alike Pandiya into the sea as a goon promises to pay him a huge sum of money. However, they are in for a shock when Pandiya returns after being rescued by fishermen.

Chidambaram Pillai, a revolutionary leader, starts the first shipping company in India. With the help of this company, he fights against the monopoly of the British over maritime trade out of India.

After the East India Company forces Kattabomman, the king of Panchalankurichi, to pay taxes and be their subordinate, the latter decides to fight against them.