SAS: Who Dares Wins Show Summary, Upcoming Episodes and TV Guide

In the finale, two teams of recruits are captured by the hunter force and subjected to a variety of punishing interrogation techniques by a specialist team. They endure being buried alive and thrown in water tanks, to force a confession, and struggle to maintain the cover story they are using to hide their true mission.

The remaining recruits are tested on their ability to trust each other through a series of tasks ranging from hand to hand combat to a terrifying 200 metre abseil. Shylla is voted the last trustworthy by her fellow recruits, and is pushed to confront why her quiet demeanour makes other people unwilling to trust her, revealing to the DS that a lifetime of racism has made her withdraw.

All 20 trainees have made it through to the second stage - where they must make a split-second decision about whether or not to fire in a combat situation. They also face a brutal training session in the desert that pushes some of them to the edge, and must freefall off the top of a 50-foot cliff, trusting a teammate to catch them. This episode also deals with overcoming family tragedy and childhood adversity.

The seven remaining contenders spend 48 hours undergoing the most psychologically gruelling stage of the training, designed to test their ability to resist interrogation. The recruits are hooded and exposed to endless white noise, and face brutal tactical questioning from a specialist team, while those who endure this experience face an even greater challenge on the highest point on the island.

The recruits work in pairs as they tackle the threat of chemical warfare and execute a fast-paced extraction in near-freezing water. Then it's time for brutal hand-to-hand combat.

The recruits face a forward abseil and an arduous beasting by the DS. There's also an extreme water immersion exercise and a team event in a dark network of disused tunnels.

The last six recruits face deep interrogation and a day of sickeners, including 'drownproofing' - simulated drowning. Only the physically and mentally elite will make it through.

The recruits' grit is tested as Jay's undercover status is revealed and he launches a brutal beasting to expose the weakest in the group

The recruits are pushed to control their aggression, as they're trained with guns and take part in hand-to-hand combat, in an episode exploring loss, loyalty and self-control

The remaining men and women's final challenge is also the most psychologically demanding: resistance to interrogation, as they're subjected to stress positions, white noise and relentless grilling

This episode is about trust. The recruits are teamed up in pairs, then take a free-falling abseil into a rocky gorge and plunge into freezing water, with their partners responsible for saving them.

The remaining male and female recruits face gruelling challenges designed to test their mental and physical strength, including a 200-foot forward abseil and an infamous boxing task

Eighteen recruits down, seven to go... and it's the most demanding final phase the instructors have ever designed. Some recruits have to give up, others are culled. Will any of them pass the course?

The recruits race each other across sand dunes in the Sahara and must cross a valley at night while avoiding hunter teams who are tracking them with dogs

From the start, the recruits face a series of extreme, high-pressure tasks, including jumping from a moving helicopter into a lake and crawling across a vast canyon on a tightrope

The directing staff apply pressure to the last eight recruits, exposing hidden personality traits before sending them into a gruelling 12-hour jungle mission high in the Andes

Chief Instructor Ant and his elite team test whether the remaining recruits can control their aggression, with a brutal game of murderball and the non-stop 'sickener' exercises.

The remaining recruits each face the final, notoriously gruelling stage of selection alone: 24 hours of interrogation. Do any of them have what it takes to succeed in the Special Forces?

The directing staff test the remaining recruits' resistance to fear, with mind games and an intimidating challenge to dive backwards from a cliff into the freezing sea 12 metres below

The recruits' first task is an unexpected one: writing an essay about themselves. Then they face an eight-mile combat fitness test while their essays are dissected for an insight into their character.