The team's investigation leads them to a mysterious cryogenics facility and the discovery of another suspicious death.

Jack is rushed to hospital after collapsing at the scene of a car crash. Following Thomas's discovery that soldier John Sealy may have been exposed to a nerve agent, is it possible someone is targeting the victim's family? With Jack's life in the balance, it's down to Nikki, Thomas and Clarissa to find the truth and save their friend.