A maritime expedition of eminent Victorian scientists sets out to find a mysterious artefact. They are attacked by a giant octopus, and when they awake they find that they are now captives of the legendary Warlord of Atlantis - master of the undersea kingdom. The scientists discover that the Atlanteans intend to alter the destiny of Earth so they can return to their true home - Mars.

Angus Macfadyen portrays the infamous pirate known as Blackbeard in this drama directed by Kevin Connor. It's 1717 and as the British Navy clears the sea of pirates and rogues Blackbeard is preparing to set sail in search of Captain Kidd's lost treasure, capturing Lieutenant Maynard (Mark Umbers)'s friend Charlotte Ormond (Jessica Chastain) along the way. Making an enemy of the Navy from the outset, Blackbeard vows to destroy anyone who gets in between him and his loot.