The episode stars Angad Bedi as Bhaskar Shetty, Sikandar Kher as Rama Shetty, and Sandeepa Dhar as Vaishnavi.

The plot thickens when the underworld don Rama Shetty requests a secret midnight meeting with Bhaskar. Fearing the escalating heat in the city, the duo decides it is time to leave town.

Mum Bhai is set in 1990s Mumbai and follows Bhaskar Shetty, a top encounter specialist loosely based on the real-life officer Daya Nayak. It explores the dark intersection of police power and the criminal underworld.