Overview

• Episode 3, 'The Well,' serves as a direct sequel to the 2008 episode 'Midnight,' revisiting the same unseen creature and its original planet.
• The evolved creature now manifests physically behind its host and kills victims, marking a shift from its previous speech-repetition attacks.
• The Doctor and Belinda uncover that Earth and humanity are unknown in the far future, adding to the season's overarching mystery.
• Rose Ayling-Ellis delivers a standout performance as Aliss, the sole survivor of a mining colony massacre, with her deafness sensitively integrated into the story.
• David Tennant makes a brief cameo as the Tenth Doctor, reinforcing the narrative bridge between past and present eras of the show.