Tom Jackman is learning to cope with his alter ego, the dark and mysterious Hyde, who threatens his life and family. They also have to live in the same body while on the run from a mysterious organization that is hunting them.
Series finale: Claire's boys are locked in mini caskets and before she can save them, a nurse injects her with a sedative. In a big country house, Peter descends in an old-fashioned lift to a dusty, forgotten gentlemen's club. There are six floors hewn deep into the ancient building's foundations - hell is on the lowest floor. They are hiding a secret; the building needs to be a fortress - and a trap for a man who can rip out a lion's throat.