The team comes to the aid of Luke Simpson, who lost his leg in an explosion while deployed in Afghanistan. Rebuilding his life and health with the support of his wife Jackie, the war hero has struggled to make progress on the garden of his dreams. As Alan and the crew work their magic, Frances Tophill reveals the key design elements for a cottage-style plot, Katie Rushworth demonstrates how to make the most out of cut flowers and David Domoney provides hints and tips on maintaining the perfect lawn.