Now that the Doctor and Clara have established a dynamic as a partnership of equals, they're relishing the fun and thrills that all of space and time has to offer. Tangling whit ghosts, Vikings and the ultimate evil of the Daleks, they embark on their biggest adventures yet. Missy is back to plague the Doctor once more, the Zygons inspire fear as they shape-shift into human clones, and a new arrival moves in cosmic ways.

Originally broadcast in Great Britain and the United States on BBC One and BBC America, respectively, in 2015. Widescreen (16:9). Special features: Disc 1. Prologue ; The Doctor's meditation ; Doctor Who extra ; Commentary on Last Christmas -- Disc 2. Doctor Who extra ; Commentary on Under the lake ; Commentary on Before the flood ; Commentary on The woman who lived -- Disc 3. Doctor Who extra ; Commentary on Sleep no more -- Disc 4. Doctor Who extra -- Disc 5. Deleted scenes ; Wil Wheaton interview ; Comic Con panel [Complete 2015 San Diego] ; Writing Who ; Dalek devotion ; Fan show finest ; Clara's journey ; The adventures of River Song ; Sublime online ; Trailers.

Disc 1. Last Christmas / director, Paul Wilmshurst, writer, Steven Moffat ; The magician's apprentice / director, Hettie Macdonald, writer, Steven Moffat ; The witch's familiar / director, Hettie Macdonald, writer, Steven Moffat -- Disc 2. Under the lake / director, Daniel O'Hara, writer, Toby Whithouse ; Before the flood / director, Daniel O'Hara, writer, Toby Whithouse ; The girl who died / director, Edward Bazalgette, writers, Jamie Mathieson and Steven Moffat ; The woman who lived / director, Edward Bazalgette, writer, Catherine Tregenna -- Disc 3. The Zygon invasion / director, Daniel Nettheim, writer, Peter Harness ; The Zygon inversion / director, Daniel Nettheim, writers, Peter Harness and Steven Moffat ; Sleep no more / director, Justin Molotnikov, writer, Mark Gatiss ; Face the raven / director, Justin Molotnikov, writer, Sarah Dollard -- Disc 4. Heaven sent / director, Rachel Talalay, writer, Steven Moffat ; Hell bent / director, Rachel Talalay, writer, Steven Moffat ; The husbands of River Song / director, Douglas Mackinnon, writer, Steven Moffat -- Disc 5. Special features.