After the horrifying revelations and reversals of fortune in Baltimore Chandler and his fractured team join forces with an underground resistance in an attempt to defeat Amy Granderson. With doses of the cure running low Rachel tries to do some good for the sick while remaining a prisoner at Avocet. Meanwhile Slattery and the crew of Nathan James are in a race against time to save an injured Dr. Tophet and regain control of their ship.
Chandler & his crew join the Resistance in the season premiere.
Chandler & his crew join the Resistance.
The Nathan James returns home to find family & friends.
The Nathan James discovers a hostpital ship, the USNS Solace.
Chandler squares off against a rogue nuclear submarine.
Chandler tracks the Immunes to a Ramsey-controlled compound.
Chandler and his team infiltrate the Immune compound.
Rachel grapples with the fact that her sworn enemy is aboard.
Rachel's cure depends on her sworn enemy Niels.
A mysterious death on ship prompts a murder investigation.
Chandler & his team must stop the Ramseys' false broadcasts.
The Nathan James prepares for a final showdown with the sub.
In the season finale, the ship starts to spread the cure.