Simon went on The Walk, selecting The Secret box. ‘Choose one contestant that will learn The Secret’ was the instruction, with Lydia receiving the power after winning a game of paper, rock, scissors against Simon. Hayley then revealed The Bunker to Lydia and told her she now had the advantage to use the cameras whenever she chose. The trainers then introduced the next challenge in the Battle of the Ages, a cook-off, with each team having to create a three-course meal under 1000 calories in one hour. The trainers revealed the Old Dogs as the winners. Michelle received a touching letter from Hamish, before the Dating Temptation Challenge was announced, with members of the public voting for who they thought was the most charming after a round of speed dating. The Young Pups took the win 13 votes to 11, winning a night out for their efforts.