Natalie Moon

Bex and the team race to catch Mark Marsden, a handsome and charming serial killer who murdered three of his wives in cold blood.

Jackson faces the most difficult decision of his life. Also, Mitch reluctantly enlists help from his father, Max Morgan (Robin Thomas), to investigate the origin of the final set of triple helix animal bones.

Mitch and Jamie hatch a daring plan to undermine the Noah Objective once and for all, and the team reunites on the Island of Pangaea where the final pieces of the cure are put in place.

Mitch seeks to rescue Clementine from her captors, and a glimpse into Jackson's sister Abigail's (Athena Karkanis) past reveals the origins of the hybrids.