‘Doctor Who’ Episode 7 Recap: God of All Gods

Season 1, Episode 7: ‘The Legend of Ruby Sunday’

Over six decades, “Doctor Who” has introduced many villains — including big hitters like the Cybermen (first introduced in 1966) and memorable one-off monsters like the gas-mask wearing Empty Child (2005) — as the Doctor’s most fearsome enemy.

But in “The Legend of Ruby Sunday,” the first episode in the season’s two-part finale, it seems his ultimate nemesis might finally have been identified — or rather, rediscovered. It turns out the mysterious villain who’s been pulling the strings this season (“the one who waits”) was first fought by Tom Baker’s Fourth Doctor back in 1975.

This reveal is genuinely fear-inducing. But it’s the combination of Russell T Davies’s pacey, tricksy script and the show’s newly lavish production values that makes Episode 7 such a bone-chilling adventure — one far scarier, far more ambitious, than I expected from the show’s Disney era.

As the finale opens, two mysteries, which Davies has threaded throughout the season, hang in the air. There’s the question of Ruby’s (Millie Gibson) back story, including the identity of her birth mother. And what about the mysterious woman (Susan Twist) who keeps popping up wherever the Doctor (Ncuti Gatwa) and Ruby travel?

These questions are on the Doctor’s mind as the TARDIS crashes into the headquarters of the United Intelligence Taskforce, or UNIT, Britain’s supersecret extraterrestrial task force. He’s greeted by the organization’s head, Kate Lethbridge-Stewart (Jemma Redgrave), and her team, including the 13-year-old scientific prodigy Morris (Lenny Rush).