Blood Brothers tells the extraordinary and ultimately tragic story of the friendship between two of the most iconic figures of the 20th century: Muhammad Ali, the greatest boxer of all time, and Malcolm X, the Nation of Islam's - and black America's - most incendiary and charismatic leader.

This was the unlikeliest of friendships - the brash Olympic Champion who spoke in verse to the amusement of the white press and the ex-con intellectual-turned-revolutionary who railed against the evils of white oppression and dismissed sports as a triviality. But their bond was deep, their friendship real.