Lily and Dorian pay a visit to a most unusual show, and Vanessa invites Sweet to a different show. Rusk sets out to track down Ethan and make sure that he hangs, and Henry demonstrates the efficacy of his potion for Victor.

Vanessa asks Seward to hypnotically regress her after learning that she met the Master sometime in the past. Rusk learns that Ethan has a new ally. Caliban finds his wife and child. Lily and Dorian have Justine pledge her service to them.

Vanessa turns to old friend Ferdinand Lyle for help, who introduces her to a new ally. Meanwhile, Lily, Dorian and Justine put their plan in motion; and Ethan, Sir Malcolm and Hecate arrive at Jarod Talbot's ranch.

Kaetenay has a vision of impending doom. Frankenstein and Jekyll get help from an unlikely foe. The Creature finally gains courage. Vanessa learns an awful truth.

Ethan, Sir Malcolm and Kaetenay return to London, where Ethan searches for Dr. Frankenstein. Dr. Seward discovers Renfield's secret. Lily reveals a heartbreaking story from Brona Croft's past.

Season finale. Ethan learns the shocking truth about Kaetenay. Dr. Seward uses hypnosis on Renfield. Meanwhile, The Creature must make a moral decision as Sir Malcolm, Ethan, Kaetenay, Dr. Seward and Catriona battle to save Vanessa.