Doctor Who series 5 episodes 6, 7, 8 and 9. Episodes 8 and 9 are a two-parter titled The Hungry Earth and Cold Blood.
The Vampires of Venice:
The Doctor takes Amy and Rory on a romantic date to sixteenth-century Venice- but, much to poor Rory's horror, things go off the rails the moment they arrive. The mysterious Calvierri family are running a sinister school for girls, from which no-one escapes unchanged. Rosanna Calvierri's students have fangs, they can't be seen in mirrors, and they drink humans dry. But even they aren't the worst things stalking the city...
It's five years since Amy and Rory travelled with the Doctor. They're back living in Leadworth, and Amy is pregnant. Rory has grown a ponytail. Life is good, if a little humdrum. Until the Doctor drops by for a visit.
And then they wake up. In the TARDIS, the Doctor, Amy and Rory have had exactly the same dream. But the TARDIS has died, and it's drifting towards a cold star- just 14 minutes till impact! If they don't freeze to death.
And then they wake up. Two worlds: one in the time machine, one in the village that time forgot. One real, the other fake. "You're home. You're also dreaming. Trouble is, Rory, Amy... which is which?" Their lives depend on making the right choice. But time is running out...
The Hungry Earth/ Cold Blood:
Over in the tiny, remote hamlet of Cwmtaff, human science is again being bold, pushing the boundaries and asking for trouble. The Discovery Drilling Project- or as the technically minded Doctor calls it, "a Big Mining Thing"- has burrowed 21km into the Earth, deeper than ever before. However, as Discovery boss Nasreen Choudry and her project manger/unrequited love, Tony Mack celebrate, an ancient race launch pre-emptive strikes, from way further beneath their feet than 21km. People, alive and dead, start to vanish. The Doctor, Amy and Rory face the ultimate uprising...
[A Police Box]
Starting from episode 6, The Vampires of Venice, Rory appears to become a full-time companion in his own right (Steven Moffat once said that he liked the Doctor better while this one was travelling with 2 companions). The actor, Arthur Darville, is listed up until episode 9 and again in episode 13. [IMDb]
It also seems that River Song, played by Alex Kingston, will also be with the Doctor in the last 2 episodes of series 5. The titles have not been released yet. [IMDb]