Aazhakadal tells the story of Kunjumon (Kalabhavan Mani), who returns to the beach after 16 years, after serving a sentence for murdering his father Anthony Tharakan (Saikumar). He returns and become the leader of the fishermen and fights the local seafood king Vakkachan (Vijayaraghavan) with the support of his father's old friends. He also gets love and support from his childhood friend Kochurani (Sruthi Lakshmi). In the end he finds out that Paulachan (Shammi Thilakan) was the man behind all his misery and the murder of his father. He avenges his death and rescues the fishermen.