Sally Lockhart and friends investigate the disappearance of a steamship, a magician who is threatened by thugs, a psychic with dark visions, and a heartless industrialist.

Sally Lockhart (Billie Piper) now runs her own financial consulting business, while her friends Frederick Garland (J.J. Feild) and Jim Taylor (Matt Smith) have opened a detective agency. But when one of her clients loses money over a vanishing steamship, Sally and the young detectives join forces again. The mystery leads them to a threatened stage magician and a medium with a dark vision. Sally must also face an old enemy.—L. Hamre

Sally Lockhart (Billie Piper) has had some success as an investment advisor, but is taken aback when one of her clients demands restitution after an investment Sally recommended failed. It seems the ship carrying the commodities in which she invested disappeared on the high seas and the Lloyd's insurers have refused to settle her claim owing to irregularities. Sally is determined to recoup her client's funds and approaches the ship's owner, Axel Bellmann (Jared Harris), for the money. When he refuses, she enlists the help of her friends Frederick Garland (J.J. Feild) and Jim Taylor (Matt Smith), who have established themselves as detectives, to get to the bottom of it all. They learn that Bellmann is a ruthless businessman who has essentially bought his bride-to-be from a nearly bankrupt member of the upper class. He's also an arms merchant who has developed a new and very powerful weapon.—garykmcd