Doctor Who: Season 5, Episode 12

5 - 12: The Pandorica Opens

A cryptic series of messages send the Doctor and Amy to Stonehenge, where they meet River and explore Stonehenge. The object of their search is the Pandorica, a legendary prison rumored to hold the most feared being in the universe. Meanwhile, old enemies assemble, a familiar face appears, and the fate of the universe hangs in the balance.