[s13e1] The Halloween Apocalypse [ Recommended — 2025 ]

As the Doctor and Yaz track Dan to Karvanista’s ship, they realize the Flux isn't just a natural disaster—it’s a targeted strike. Deep in the ruins of a Space Station called , an ancient and terrifying being named Swarm escapes a millennia-long imprisonment. He shares a psychic link with the Doctor, mocking her for "forgetting" him.

The Doctor, Yaz, and Dan Lewis are chained over a gravity bar as the universe begins to unravel. A cosmic force known as is tearing through space-time, consuming everything in its path. [S13E1] The Halloween Apocalypse

On Earth, a man named Dan Lewis is kidnapped from Liverpool by Karvanista, a dog-like Lupari warrior. While it looks like a hostile abduction, the Doctor discovers that the Lupari are actually bound by an ancient species-covenant to protect humanity; Karvanista is "saving" Dan from the coming end of the world. As the Doctor and Yaz track Dan to

The Doctor manages to reach Earth just as the Flux arrives. She coordinates the Lupari fleet to form a massive shield around the planet, using their ships to block the anti-matter wave. However, the Doctor, Yaz, and Dan are caught in the TARDIS as the Flux catches up to them. As the episode ends, the psychic "Swarms" of the Flux breach the TARDIS doors, leaving the Doctor’s fate hanging in the balance. The Doctor, Yaz, and Dan Lewis are chained