In Doctor Who, which 2010 episode title refers to the mysterious prison called the Pandorica?

“The Pandorica Opens” is the 2010 Doctor Who episode title referring to the mysterious prison called the Pandorica. It is the twelfth episode of the fifth series and was written by showrunner Steven Moffat.

The episode stars Matt Smith as the Eleventh Doctor, with Karen Gillan as Amy Pond, Arthur Darvill as Rory Williams, and Alex Kingston as River Song. The Pandorica is introduced as an ancient object beneath Stonehenge that is said to contain the most feared being in the universe. Its mystery draws the Doctor and his allies into a confrontation involving many of the Doctor’s enemies.

“The Pandorica Opens” is the first half of a two-part series finale. Its story continues directly in “The Big Bang,” which aired the following week. The title deliberately evokes Pandora’s box while giving the concept a science-fiction setting.

The episode was first broadcast on BBC One in June 2010. It is distinct from the ancient Greek myth, although both stories use a sealed container associated with danger and revelation.