E1 - Unreal City

Aired: June 21, 2015

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.

E2 - Fight the Ship

Aired: June 21, 2015

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.

E3 - It's Not a Rumor

Aired: June 28, 2015

Nathan James returns home to Norfolk on a mission. With his family now safely aboard the James, Chandler sends his crew in search of their friends and loved ones.

E4 - Solace

Aired: July 05, 2015

The crew of Nathan James discovers that hospital ship USNS Solace was sent to sea to wait for Dr. Scott's cure. Captain Chandler sees an opportunity to add another ship to their fleet while Rachel is eager to find a lab better equipped to replicate the vaccine. When Solace fails to respond to radio communications, Chandler and his team board the ship...and come face-to-face with an unexpected enemy.

E5 - Achilles

Aired: July 12, 2015

With a small group of survivors from Solace in tow, Chandler and his crew square off against an enemy of the most dangerous kind - a nuclear-powered submarine led by rogue British naval officers, Sean and Ned Ramsey. XO Slattery interrogates a captured mercenary from the hospital ship in an effort to extract information on the sub and its mission. As Nathan James engages in a perilous game of cat-and- mouse, the truth about the mercenary sub unfolds.

E6 - Long Day's Journey

Aired: July 19, 2015

Chandler tracks a new threat to Northern Florida. Meanwhile, Rachel comes across a secret formula that her mentor, Dr. Hunter, had been perfecting.

E7 - Alone and Unafraid

Aired: July 26, 2015

While XO Slattery struggles to evade a submarine, Chandler and his team infiltrate a compound on land.

E8 - Safe Zone

Aired: August 02, 2015

Still trying to piece together Dr. Hunter's lost formula, Rachel grapples with her sworn enemy's presence on board the Nathan James.

E9 - Uneasy Lies the Head

Aired: August 09, 2015

With Dr. Scott on the verge of a breakthrough, Chandler and his team set out to land in search of much needed supplies and materials for her lab.

E10 - Friendly Fire

Aired: August 16, 2015

Rachel is hard at work on a new, more efficient version of the cure while Alisha decodes a message found on a recovered cell phone.

E11 - Valkyrie

Aired: August 23, 2015

After a message is broadcast implicating the Navy in a devastating disaster, Chandler looks to infiltrate the network and regain the trust of the American people.

E12 - Cry Havoc

Aired: August 30, 2015

Nathan James finds itself trapped between the submarine and civilian blockades.

E13 - A More Perfect Union

Aired: September 06, 2015

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.