Alan Titchmarsh presents the first in a series of special episodes in which he reveals the secrets behind some of his favourite garden designs, and looks back on some of the most memorable assignments featured on the show. The first episode focuses on country gardens, and revisits three past projects the team put inventive spins on - a classic country garden, a design with a cottage twist, and finally a project that set out to create an enchanted atmosphere inspired by classic children's book The Secret Garden.