The film is based on the battle exploits of Kunjali Marakkar IV, the naval chieftain of the Samoothiri. Kunjali Marakkars organised the first ever naval defense off the Malabar Coast of India against the Portuguese invasion, for almost a century.

Abhiram, the youngest son of London-based businessman Subramanyam embarks on a dangerous journey to fulfill his father's last wish of regaining their lost pride and identity.