Overview
"The Tsuranga Conundrum" is the fifth episode of the eleventh series of the British science fiction television programme Doctor Who. It was written by showrunner and executive producer Chris Chibnall, directed by Jennifer Perrott, and first broadcast on BBC One on 4 November 2018.
In the episode, alien time traveller the Doctor (Jodie Whittaker) and her companions – Graham O'Brien (Bradley Walsh), Ryan Sinclair (Tosin Cole), and Yasmin Khan (Mandip Gill) – are brought aboard a medical ship to recover from injuries they recently endured, only to find themselves dealing with a dangerous alien creature that threatens the ship and those being transported by it. The episode guest stars Brett Goldstein, Lois Chimimba, Suzanne Packer, Ben Bailey-Smith, David Shields, and Jack Shalloo. The episode was watched by 7.76 million viewers, and was met with mixed reviews from critics.
Plot
While scavenging on an alien junkyard planet, the Thirteenth Doctor, and her companions, Graham, Yasmin, and Ryan are caught in a sonic mine's detonation. They wake aboard the Tsuranga, an automated ship travelling to a medical space-station. Exploring the ship, the Doctor meets some of the patients being transported – Eve Cicero, a renowned general; her brother Durkas; Eve's synth robot partner Ronan; and Yoss, a pregnant man. After gaining access to the ship's systems, the Doctor, alongside head nurse Astos, notice something heading for the ship. They realise it is an alien entity, which gains access to the ship and starts damaging its escape pods. Astos becomes trapped in one that he is inspecting, and dies when the pod is jettisoned into space and explodes.
From Wikipedia (CC BY-SA 4.0).