Detectives Hitchcock and Scully demonstrate how they stay awake during stakeouts.

Bo and her allies race to stop an ancient evil from wreaking mass destruction.

Masters continues his surrogacy program, now under Johnson's critical eye.

An attempt to draw Mickey out of hiding jeopardizes Bunchy's wedding.

Season Finale- With their mission now fully dedicated to spreading the cure, Nathan James puts a call out to civilians to meet at pre-selected ports across the country, where all will receive the cure. However, small Immune factions remain active in their quest to fight the cure and fulfill Ramsey's dreams.

Justine takes drastic measures to counter a surprise invasion. Nora and Fet perform a useful mission while Eph and Setrakian face off against an old foe.