SAS Australia

In a heart-stopping abduction scenario, recruits must escape from the trunk of a moving car, bringing out reckless behaviour in some.

Recruits take part in an extreme tug of war. Facing off against each other, the loser will be dragged off a 100 metre cliff. An assault course will leave them bruised and battered.

Friction among the recruits explodes as leadership is put to the test in a brutal Navy SEAL surf battle and a grueling team waterfall climb.

Recruits face a high adrenalin task as they leap from a moving zodiac into a moving helicopter. Pepper spray conditioning pushes some over the edge. Only with the right mindset will they succeed.

Entering a dark tunnel filled with obstacles and water, recruits must remain adaptable and battle claustrophobia. Tensions boil over as the recruits attempt to work together.

Celebrity recruits must remain calm in a terrifying balancing act high above a factory floor. Later, they face a dangerous Navy SEAL drowning survival test called 'the beehive'.

Seventeen celebrity recruits have the guts to sign up for the most brutal Special Forces selection course. Their first initiation is to be set on fire, and then survive a plane crash simulation.

The celebrity recruits are submerged in a vehicle underwater, forcing them to control their panic while holding their breath. They also undertake a covert drill, to test their integrity.

The celebrity recruits must use courage while facing a terrifying balancing act, 30m above ground. Back at base, they face claustrophobia by negotiating a narrow underground tunnel.

Eighteen celebrity recruits undertake physical and psychological tasks to strip them of their egos. On arrival, the recruits face tear gas exposure and interrogation by the ex-special forces' instructors.

Recruits are brutally awoken by the sound of gunfire and a botched rescue attempt unfolds. Messages from home test the recruits' emotional resolve while a relentless pack march takes its toll.

Armed with rifles, recruits are tasked with a hostage rescue mission, before taking on their most dangerous task yet in near freezing water.

The fatigued recruits drop from a helicopter into 4-degree water carrying 20kg backpacks, before making their way to shore as a group then racing to the top of a mountain.

In a punishing day, recruits crawl across a jagged ravine on a single rope above the ocean; are submerged in crashing, cold surf; and face a physical drilling that leaves them on the brink of collapse.

In freezing waters with plummeting body temperatures, recruits wait to be rescued by their teammates before they face a test of pure grunt and teamwork. An emotional departure surprises the group.

In an abandoned abattoir, recruits face a life or death decision before they are drilled physically into the early hours of the morning. Will they bow out from exhaustion or find the true grit needed?

Recruits are pushed to tackle their fears head on in a 60m high forward abseil, while a brutal game of murderball on a black mud plain leaves one recruit with a near concussion.

Celebrities undertake a series of extreme tasks, including jumping backwards out of a helicopter and hand to hand combat, as they begin the challenge of completing the gruelling SAS selection course.