This historical drama shows the Battle of Saragarhi in 1897. The focus of the film is on Sergeant Isha Singh. He was stationed at one of the three forts in the Shaman Mountains in Khyber Pakhtunkhwa on the then India-Afghanistan border. He was transferred to the Saragarhi Fort, which was used as a message relay station, because he disobeyed his superiors' orders and saved an Afghan girl from the hands of religious elements. The Afghan religious elements used this as an excuse to capture the three forts in one fell swoop. The first to be attacked was the Saragarhi Fort, which was used as a relay station. Sergeant Isha Singh led a platoon of 21 Sikhs to fight against more than 10,000 Afghan invaders. They fought bloody battles and delayed the Afghan invaders' offensive pace, thus shattering the Afghan invaders' conspiracy to capture the three forts in one fell swoop. However, all 21 warriors died and died heroically. This event is considered the greatest last-ditch battle in history.