Based on the life of  Sandeep Singh, the film stars Diljit Dosanjh as the ace hockey player who leads India to qualify for the 2012 London Olympics under his captaincy. In spite of being paralyzed and confined to a wheelchair for two years after he was injured in an accidental firing incident, Singh didn’t just get back on his feet and on to the hockey field — which, as the film’s tagline goes, could well be ‘the greatest comeback story’.