Nisha lives a poor lifestyle in the Portuguese-ruled Malabar region in India along with her widowed dad, Narayan Das. Both father and daughter are opposed to the oppressive rule of the Portuguese General Barborosa, and even shelter a freedom fighter, Ramzan Ali Saudagar. When the Police get wind of this, they arrest both Ramzan and Narayan and torture them. Nisha approaches Raj Mata albeit in vain. Thereafter Nisha and her friend are arrested and jailed after a failed attempt to kill Barborosa. After spending sometime in prison, the two women, along with several other prisoners are hired out to work on a merchant ship. They end up overpowering the ship and it's men and take over it. They use this ship to tackle another Portuguese vessel, sinking it, and taking three captives, an astrologer, a young man, and a woman named Rosita.