The toughest fishermen. The roughest seas. But the prize is deep sea gold.

Gripping high seas adventure, as four crews race to fill their quota of prized crayfish in some of the roughest seas in the world. Huge seas, huge risks - tough men, compelling viewing. The series is packed with incident: on board accidents; men almost washed away; boats breaking down - sharks... Each crew has humour and camaraderie, but when the fishing gets tough, and the clock is ticking - real characters are revealed. Meet the godfather of crayfishing Vaughn Fisher and his uber cool sons, Slade and Jayce, who take on the biggest seas to secure the biggest catch - and make millions. They're up against the old pro John Hawkless and his wry, entertaining crew, who use all the tricks in the book to get ahead. Alongside them, the underdog, and the good guy, rookie Rewi Bull: mortgaged to the hilt - and has to catch fish to survive. He battles throughout - but does Rewi rise to the top to win in the end? An amazing observational documentary series.