Season 8, Episode 3
Robot of Sherwood
When Robots threaten Sherwood forest, the Doctor must join forces with Robin Hood to stop the evil reign of the Sheriff of Nottingham.
In a sun dappled Sherwood forest, the Doctor discovers an evil plan from beyond the stars, and strikes up an unlikely alliance with Robin Hood. With all of Nottingham at stake, the Doctor must decide who is real and who is fake. Can impossible heroes actually exist?