BBC America has released a preview for the upcoming third episode of season 8 of Doctor Who entitled The Robots of Sherwood. Watch as the Doctor and Clara meet Robin Hood and attempt to foil an evil plot from beyond the stars. Catch the episode this Saturday, September 6th on BBC America.

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?