BBC have released a brand new trailer and official synopsis for the first episode of ‘Doctor Who’ Series 9, titled “The Magician’s Apprentice.”

Official Synopsis for “The Magician’s Apprentice.”

“Where is the Doctor? When the skies of Earth are frozen by a mysterious alien force, Clara needs her friend. But where is the Doctor, and what is he hiding from?”

Series 9 Official Synopsis:

The highly anticipated ninth series of Doctor Who explodes onto ABC TV and it promises to be one hell of a journey.

During this electrifying new 12-part series, the Doctor (Peter Capaldi) is joined by Clara Oswald (Jenna Coleman) for time travel on a cinematic scale. Having the time of their lives, the pair meets new and old monsters, and embark on a journey that takes them to deadly alien planets, creepy underwater bases, Viking villages, a global Zygon uprising, and which leads them through hidden alien dens to the very end of time itself.

Plus, the Doctor will come face-to-face with Missy (Michelle Gomez), a city of Daleks, deadly mercenaries called the Mire, terrifying ghosts, and far more.

As previously announced, taking up guest roles in the new series are rising young star Maisie Williams (Game of Thrones), and comedian and award-winning writer Reece Shearsmith (An Adventure in Space and Time, The League of Gentlemen). Plus UNIT are back with Jemma Redgrave and Ingrid Oliver (Osgood) also returning for series nine. Also confirmed for guest appearances are Rebecca Front, Rufus Hound, Paul Kaye, Joivan Wade and Sophie Stone.

The ninth series has been written by lead writer Steven Moffat, Toby Whithouse, Jamie Mathieson, Peter Harness, Mark Gatiss, and new writers, Sarah Dollard and Catherine Tregenna; and directed by Hettie Macdonald, Daniel O’Hara, Ed Bazalgette, Daniel Nettheim, Justin Molotnikov, Rachel Talalay; and produced by Tracie Simpson, Derek Ritchie, Nikki Wilson and Peter Bennett.

‘Doctor Who’ Series 9 returns September 19th, 2015 on BBC America.