Doctor Who 10x1 Apr 2026

Bill realizes the fluid is just looking for a way home. She lets go of "Heather," and the Doctor decides to take Bill on as a full-time traveling companion. 2. Why This Episode Matters

This episode sets up the season-long mystery of the "Vault" beneath the university, which the Doctor and Nardole are sworn to protect. Doctor Who 10x1

It was designed as an entry point for new viewers, explaining the TARDIS and the Doctor’s nature through Bill's inquisitive eyes. Bill realizes the fluid is just looking for a way home