The 29 recruits meet Ray and Woodie, two former members of the US Navy Seals.
Recruits under the command of former Israeli YAMAM operative Itay Gil.
Lieutenant Dante Membrere looks for the weak link.
The 13 remaining recruits are battered and bruised after three back-to-back challenges.
The remaining recruits enter a psychologically challenging phase.
The remaining six recruits will face the ultimate test, 48 hours with the British SAS.
Reggie Yates
Host
Andrew Flintoff
Sam Campbell
Director
Tom Cross
Louisa Gray