Ben's struggle to prioritize the immediate safety of his companions versus the Doctor's mission to save the world.

As Ben and the Doctor emerge from the flooded tunnels into daylight, Ben immediately shifts his focus from the existential threat of Zaroff’s world-ending scheme to Polly’s safety. The Doctor, …

On a mountainside, Polly and Jamie—exhausted and emotionally raw after their harrowing escape from the flooding Atlantis—sit in tense silence, their relief at survival tempered by grief for the Doctor, …