A brand new Doctor and his companions-to-be have 20 minutes to save the world from an inter-dimensional fish-snake and the crystalline eyeballs pursuing it
We drop in on the Doctor just hanging out with his TARDIS. Crashing into a back-garden in Leadworth, half an hour from Gloucester, he meets the young Amelia Pond, soon to become the girl who waited. She introduces him to the crack in her wall, drops a few hints at major plot lines this season, and then he sods off by mistake.
Still cooking from his regeneration, he returns 5 minutes / 12 years later only to find that an inter-dimensional snake-fish fugitive has taken up lodging in a forgotten room in now grown-up Amy’s house. And to top it all off, there’s a Douglas Adams-esque ploy to destroy the Earth. Together with her sort-of boyfriend, Rory, they now have 20 minutes, give or take, to deliver up Prisoner Zero and save us all.
Also, keep an eye out for a cameo by Arthur Cox as Mr Henderson. We last met Arthur Cox in the role of Cully in The Dominators.