Alfred and Martha Kane take a train ride into the countryside on an assignment, while tragedy strikes in London.

While Martha and Thomas confront Crowley over his strange party and the return of Patricia, Alfred and the lads track down the identity of a wanted killer.

While Lord Harwood returns to take control of the Raven Society, Alfred, Dave Boy and Bazza form an unlikely alliance with the Sykes Sisters.

Alfred, Thomas and Martha become entangled in an assassination plot against Lord Harwood.

After a member of the British royalty is abducted, Alfred must take a side in the struggle. Meanwhile, Lord Harwood uses those closest to Alfred to remove him from the game.