A full trailer was released for the Doctor Who Easter special, Legend of the Sea Devils.

Composite Synopsis:

In a swashbuckling pirate adventure, the Doctor, Yaz and Dan come face to fin with one of the Doctor’s oldest adversaries in a coastal village in 19th century China. Madam Ching is on a mission to track down the lost treasure of the Flor de la Mar, a ship that may have been washed up in the waters around the area. The fearsome pirate queen unwittingly unleashes a terrifying, monstrous alien force beneath the sea – Sea Devils and their ghostly amphibious pirate ship. Will the Doctor, Yaz and Dan emerge from this adventure to save the planet? And did Yaz really have to dress Dan up as a pirate?

“You’re like a kid sometimes.” “Thanks!”

The TARDIS materializes underwater.

A pirate adventure must have a sea monster.

“Yaz, did you dress dan up like this?”

“Madam Ching! Pirate Queen?”

“That’s Impossible!” “Sea Devil.”

“Where is the crew?” “That’ll be us.” “We don’t Stand a chance.”

“It’s coming straight for us!”

“Down!” “Man the cannons!”

“The world has been disrupted.” “Because of you. Because of what you unleashed!”

“You want to create chaos.” “‘Tis our time.”

“Say ‘Hello’ to my crew.”

What’s a pirate adventure without swinging on lines, sword fighting and a maelstrom?

Written by Chris Chibnall and Ella Road, directed by Haolu Wang and starring Jodie Whittaker, Mandip Gill, John Bishop, Crystal Yu, Arthur Lee, Marlowe Chan-Reeves and Craige Els, Legend of the Sea Devils airs Easter Sunday, April 17, at 7:10pm BST on BBC One and at 2:10pm and again at 8:00pm EDT on BBC America.