Prizefighter is the greatest boxing story never told. Jem Belcher (Matt Hookings) is born into poverty and brought up by his grandfather (Russell Crowe), a former boxer now struggling with addiction. Desperate to make a living and honour his grandfather’s legacy, he seeks mentorship from a renowned trainer (Ray Winstone), who nurtures his natural talent and coaches him to be the greatest fighter in the world. Jem becomes Champion of England and is on top of the world before an accident leaves him partially blind, sparking a destructive downfall. Jem must prove himself once again and fight the latest champion in a brutal contest to reclaim his title once and for all.