“RISK TO LIFE: ABSOLUTE.” Injured and stranded in the wilds of a far-flung galaxy, The Doctor, Yaz, Graham and Ryan must band together with a group of strangers to survive against one of the universe’s most deadly — and unusual — creatures. Guest starring Suzanne Packer, Ben Bailey Smith, Brett Goldstein and Lois Chimimba. Written by Chris Chibnall. Directed by Jennifer Perrott. 'The Tsungara Conundrum' airs on Sunday 4th October.