An inspiring story about an orphan boy from the streets of Dongri, who grows up to become a local goon of his area and how his life changes after he meets the young and compassionate Ananya, who guides him towards the right path and makes him realize his true calling i.e boxing.

Dhananjay and Aaftab are half brothers who have never met. When they first do they instantly loathe each other, having nothing in common. One night, Aaftab blows up a loaded truck while trying to steal from it and attracts a mass of unwanted enforcers. Soon, Aaftab is forced to send Dhananjay into a trap but ends up with them both being handcuffed and escaping from the Border Security Force, the Central Bureau of Investigation, and the border mafia who are attempting to incriminate the brothers for anti-national activities and murder. Fate has it such that they are forced to escape on foot, on motorbikes, cars, stolen trucks, and even handcuffed to each other on a moving goods train.

Major Jaidev saves a politician from the clutches of a dreaded terrorist. However, the terrorist joins hands with his childhood friend Anjali to ruin his life.

Sidharth (Aamir Khan), is a Mumbai 'Tapori' and a boxing champion. His elder brother, Jai (Rajat Kapoor) works with Raunak Singh (Sharad Saxena), who now rules their "Basti" through terrorising its people and collecting 'Hafta' from local merchants. Sidharth idolized his father, a freedom fighter, whom he saw falling to his death as a child. This effects Sidharth through his adult life. Sidharth meets a young girl, Alisha (Ranee Mukherjee), who rides with a motorcycle gang and Charlie (Deepak Tijori), the gang leader. Sidharth also meets Hari, whose idealism reminds him of his father. Hari's social work in the community possess a threat to Raunak Singh's evil empire. What happens to Hari changes Sidharth's life forever. How Sidharth breaks Raunak Singh's chains of 'Ghulami' around the community forms the crux of the story. Featuring the superhit song "Aati Kya Khandala" sung by Aamir Khan.

影片讲述了一个关于印度政坛的故事。
印度的政治与选举，使得少数的人得以操控数千万人的生活，但这群人并不满足，仍汲汲营营的满足自己的野心，为此不惜暴力相向。
少数人玩弄政治、攫取利益，而其影响所及将超出你我的想象。