One night, while working at the Mumbai Police Emergency Call Centre, police officer Nikhil Sood gets a call from a hysterical woman who wants to commit suicide. Even as he tries to save her, Nikhil has no idea that it will lead to him endangering his own family as dark truths that he has been hiding threaten to destroy all that he loves and stands for.

Mahavir Singh Phogat is a former amateur wrestler and national champion residing in Balali. He was forced by his father to give up the sport in order to obtain gainful employment. Dejected that he could not win a medal for his country, he vows that his unborn son will. Disappointed upon having four daughters, he gives up hope. But when his older daughters Geeta and Babita come home after beating up two boys in response to derogatory comments, he realises their potential to become wrestlers and begins coaching them.
His methods seem harsh, including grueling early morning workouts and short haircuts. Despite facing backlash from the villagers, he goes ahead with them, training them in his makeshift mud pit. Initially, the girls resent their father for his treatment but soon realise that he cares for their future. Motivated, they willingly participate in wrestling tournaments where they defeat boys. Unable to afford wrestling mats, he uses mattresses and trains them in freestyle wrestling to prepare them for competitive events. Geeta goes on to win the junior and senior championships at the state and national level before heading to the National Sports Academy in Patiala to train for the forthcoming Commonwealth Games.