The BBC has published the official synopsis for the third episode of Doctor Who‘s new series, titled ‘Robot Of Sherwood’.

The synopsis reads: “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 really exist?”

Written by Mark Gatiss, ‘Robot Of Sherwood’ guest stars Tom Riley as Robin Hood and Ben Miller (Death in Paradise) as the Sheriff of Nottingham.

The episode airs on Satuday 6 September on BBC One and is described by showrunner Steven Moffat as “very, very funny”.

Series 8 begins tomorrow night on BBC One with ‘Deep Breath’.

> Here’s everything we know so far about Series 8.

Are you looking forward to ‘Robot Of Sherwood’? Let us know below…