Alone and adrift after his discharge from the Navy, Anthony ‘Snoddy’ Spencer discovers the seductive world of the outlaw bikie - and the formidable force that is Jock Ross – Supreme Commander of the Comancheros.

In the late seventies and early eighties, all bikies wanted to do was drink, party and ride bikes. That – and the odd brawl with other clubs. It's a life-style Snoddy takes to with ease. He meets Lee through a fellow ‘nom’ (nominee) and a relationship develops. Jock is recruiting, and Snoddy helps lure Caesar Campbell, a biker with a fearsome reputation, into joining the club. But it is Snoddy’s part in a brawl with rival club - The Loners - that finally wins his brothers’ respect … and full membership of the Comancheros.

Now a fully-fledged member, Snoddy does his best to calm bristling egos when Caesar Campbell and his brothers threaten to become a club within a club.

Caesar’s brothers join the Comancheros as Jock’s recruiting continues. Jock’s military drills are not to everyone’s taste and the Campbells are showing signs of discontent. When an explosives expert, Kraut, is recruited as a nominee, the Campbells are ready to look for another club. But Snoddy calms the waters and a new clubhouse is found overlooking Sydney Harbour. The new clubhouse is a great success – until the Campbells accuse Jock of breaking his own rules. To avoid the scrutiny of a meeting, Jock splits the club into two chapters. Snoddy pledges his loyalty to Jock – which Jock rejects.

The tensions with Jock’s western chapter make a mockery of club loyalty, Snoddy and the city chapter reject their Comancheros colours to join the Bandidos.

Hostilities between the two clubs intensify with Jock declaring war on the Bandidos.

Father's Day, 1984. A swap meet at Milperra becomes the moment of truth for both the Bandidos and Comancheros.

The confrontation leaves six bikers and one innocent bystander dead. But the tragedy of Milperra is far from over.