In 1971, Deben Sau, with wife Churni and younger brother Barin, escapes from erstwhile East Pakistan to Calcutta, India. The family struggles to rise above their status as refugees.
In 1973, Deben, Churni and Barin establish themselves as the formidable Senapatis - the first gang-lords of Bengal, all the while facing the various challenges that come with their new role.
In 1975, the Senapati family of Calcutta, India is firmly ruling the Bengal underworld of crime and punishment. At this stage, they are faced with the biggest political threat of the time - the Naxalite-Maoist insurgency.
In 1975, the Senapatis of Bengal deal with the linchpins of the Naxalite movement. Just when they think they have gotten away with yet another underworld coup, they find themselves on the radar of daredevil sub-inspector Neogi.
It’s been three years since the bank robberes and life has completely changed for the Senapatis. Things will take a u-turn when they are summoned at Lalbazar.
Deben Senapati joins hands with the Bombay underworld and soon he is enroute to becoming a film producer. The risks are getting enormous as the stakes go sky high at the race course derby.
Deben unreveals the mole at Lalbazar and decides to turn the clock against his adversary. The game turns fatal as bullets fly and Deben Senapati falls.
The Senapatis are no more untouchables as their boss was shot in his own ground. The think tank at BK Pal avenue work fast to figure out the assassins while multiple adversaries emerge out of the dark to take the family down.
War is declared as Calcutta is often shaken with the reverberated sound of guns and bloodshed. The Senapatis have decided to go to war against their enemies.
Deben extends his business into films and soon he becomes a name in the entertainment society of Calcutta. In the meantime, the underworld dons of Bombay put together a plan to help Deben settle an old score.
The most talked about Wassipur killings of late 70’s elevates the family as the most wanted one in Lalbazar. Deben is on a roll in business while there are tremors felt at home as he gets too close to a new friend.
Churni confronts Deben about his choices and by now Deben has moved on to bigger things in life as he is marked blue by the legendary Haji Mastan. The naxals too are busy planning a way to avenge the death of Dilip Khashi.
The family has disintegrated as business begins to take hit. Losses keep increasing as the adversaries know this is the best time to hit the Senapatis. Bombay dons lure Brain to do business in narcotics which Deben is unaware of.
Brothers are on warpath as both stick to their morals and soon chain of events follow to put more pressure on the family to recover from the current cond=fused state of things.