Want to become a submarine captain? Great job, good pay, prestige, heroism, never a dull moment… but first you must pass the ultimate test - a six month job interview from Hell, culminating in four weeks of intense, sleep deprived, non-stop naval warfare inside a nuclear attack submarine in the treacherous waters off Western Scotland.

In this action-packed ob doc series, The Gamma Project embeds inside the World’s toughest officer cut down experience, the Royal Navy’s ‘Perisher’. It’s the oldest, most prestigious and most brutal Naval experience on the planet. This year five of the UK and USA’s finest young officers have put their careers on the line to take part. These high flyers are risking all to win the right to command a nuclear submarine, because Perisher is do or die – when a candidate fails their naval career is over and they’ll never set foot in a submarine again.

For four weeks they face 18 hours a day of tests, drills and full force warfare as thirty NATO ships, dozens of helicopters and fixed wing aircraft and troops of special forces are lined up to fight both with and against them. They’re pushed to breaking point, as they’re put through every form of submarine operation and every possible worst case scenario imagineable.

Find out who will make it through and who will crack under the pressure in the ultimate series that immerses the audience deep inside the fascinating, world of modern submariners and their amazing £200 million machines.