Twelve-year-old Will loves rugby but he had to give it up in order to have chemotherapy. Will has Langerhans Cell Hystiocytosis and it's his rugby community that has got him through it. Being restricted to the sidelines is getting him down so he needs a rugby den to keep him in the game.

Joe and Lauren look back at all the amazing dens built throughout the series. They reminisce about the great kids, the tense surprises, and the big reveals.

Eight-year-old Oscar has lived most of his life in the Australian outback where he had an amazing time dirt biking, camping and playing outside. He and his family moved to Ayr a few years ago and while he has made good friends and likes living there, he misses his old outback life. He wants an Australia den so he can remember his hometown and where he can share his memories with his new friends.