There's not much I can say so early in the season, but I definitely feel intrigued and excited to watch the remaining episodes. In terms of the story, this certainly feels like an interesting starting point. Finally there's the Sontarans, who seem to be aware of the upcoming destruction and are excited and ready for the approaching war. Furthermore, earlier in the episode we are briefly introduced to a philanthropist Joseph Williamson, working on the construction of the tunnels under Liverpool back in 1820 and in addition we follow Vinder, the only crew member of a remote outpost in deep space, trying to evacuate after encountering the Flux. Next, we have a museum worker Diane, invited to a date by Dan shortly before his kidnapping, and later caught by Swarm and Azure. There's also Claire who appears to know the Doctor and encounters her briefly with Yaz before being captured by a Weeping Angel. Swarm is later reunited with his sister Azure, seemingly trapped inside a woman living in the Arctic Circle. First we see a mysterious being, Swarm, escaping his imprisonment after millennia, who appears to share a connection with the Doctor, even though she doesn't remember them ever meeting. Throughout the episode we are also introduced to a number of new recurring characters. The Doctor comes up with an idea to shield the planet from destruction, thanks to Karvanista and the Lupari fleet, but together with Dan and Yaz gets caught by the Flux quickly approaching the TARDIS.
Eventually the TARDIS allows the duo to locate and free Dan and learn that Karvanista has taken him from Liverpool because he and the rest of his dog-like Lupari species are trying to protect humanity from the Flux, an unknown entity coming to destroy the Earth and consuming everything in its way. They manage to escape after being captured by him, only to follow him to the Earth and discover he has kidnapped a man named Dan Lewis.
The Doctor and Yaz have been travelling on their own for a while now and have recently began a pursuit of Karvanista, with Yaz not aware of the real reason behind the Doctor's interest in him. Now, to the hour itself, starting with a recap.