Overview

Orbiting a quiet backwater planet, the massed forces of the universe's deadliest species gather, drawn to a mysterious message that echoes out to the stars. And amongst them, the Doctor. Rescuing Clara from a family Christmas dinner, the Time Lord and his best friend must learn what this enigmatic signal means for his own fate and that of the universe.

Details

Cast

Matt Smith

Jenna Coleman

Peter Capaldi

Karen Gillan

Orla Brady

Kayvan Novak

Nicholas Briggs

Dan Starkey

Sarah Louise Madison

Ross Mullan