Kaalaiyan dotes on Meenatchi and carefully plans her marriage to a local family to keep her near him. However, on the day of the wedding, Meenatchi elopes with her college lover and moves to . Although heartbroken, Kaalaiyan allows her to go to prevent any "honor" retaliation from their relatives. Part 2: Trouble in Kolkata

Months later, Kaalaiyan travels to Kolkata and discovers Meenatchi is in dire straits. Her husband's business was sabotaged by a ruthless corporate criminal, ( Abhimanyu Singh ), her factory was burned down, and her husband was arrested on false charges. Part 3: The Secret Protector

The story of the 2021 film (starring Rajinikanth ) centers on the deep, protective bond between Kaalaiyan , a respected village sarpanch in Thanjavur, and his younger sister, Thanga Meenatchi ( Keerthy Suresh ). Part 1: The Village and Elopement

Remaining in the shadows to avoid hurting his sister's pride, Kaalaiyan adopts the pseudonym (Big Brother). He begins a violent crusade to dismantle Manoj's empire, secretly providing for Meenatchi while she remains unaware of his presence. Part 4: The Final Conflict

After Kaalaiyan forces Manoj to return stolen assets, a humiliated Manoj commits suicide, prompting his even more dangerous brother, ( Jagapathi Babu ), to seek revenge. Udhav targets Meenatchi to draw out Annaatthe. In a final showdown, Kaalaiyan defeats Udhav and his army, ultimately revealing himself to a tearful Meenatchi, who apologizes for the trouble she caused.

The Hindi-dubbed version is currently available for streaming on Netflix.