S1, E4: The Wimps have almost completed their six-month journey to become MMA Warriors, but the nerves, the fears and self-doubt are taking control. Meltdowns, breakdowns and uncertainty are overshadowing their goals to enter the cage and take on their opponents; opponents who are now friends, opponents they don't want to hurt. Their minds, bodies and spirits are being tested. Survival strategies come into play – how do they cope, how do they push forward. Distraction is key – socialising is paramount – camaraderie is their lifeline. Sharing their wisdom is MMA legend Jens Pulver and Boxing celebrity Billy 'The Kid' Dib – Warriors who know what it's like to rise to glory, to fight for their goals against the odds. Plus, one of the biggest names in MMA, Mark Hunt, takes these would-be warriors under his wing to help them knock down the mental barriers in their quest to achieve the Ultimate Human Experiment. Tears and triumph make for an emotionally charged, rollercoaster episode leaving you questioning who will make it..