There's a shock when Idris finally reveals to his team who they'll be facing in their official amateur fights. As the big night draws closer, he arranges a training session with ex-convict turned world-record-breaking rower, John McAvoy, who inspires with his own heroic story, before challenging them to an epic race on the Thames.After three months of non-stop training, the students return home to see friends and family. For some, it's a chance for them to reflect on how far they've come and what they're trying to leave behind, but for others, keeping on the straight and narrow proves tough.Back at Fight School, coach Greg discovers there's been a massive drop in student fitness. Newest recruit 23-year-old Katie, who joined the group six weeks into the process, impresses in her first spar – but the intensity of the training puts a serious toll on some of the group, putting a number of the team's places in serious jeopardy.The episode culminates with a third and final spar night – one last opportunity to prove to Idris and Head Coach Rachel that they're good enough to fight at York Hall. To add to the pressure, the bouts are at Earlsfield – one of London's most famous amateur boxing clubs. Determined to get the best out of his squad, Idris decides he's going into the ring to fight too.