第 2 季 共 13 集
播出时间：2015年6月22日
第 1 集 Unreal City
播出时间：2015年6月22日
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.
第 2 集 Fight the Ship
播出时间：2015年6月22日
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.
第 3 集 It's Not a Rumor
播出时间：2015年6月29日
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.
第 4 集 Solace
播出时间：2015年7月6日
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.
第 5 集 Achilles
播出时间：2015年7月13日
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.
第 6 集 Long Day's Journey
播出时间：2015年7月20日
Chandler tracks a new threat to Northern Florida. Meanwhile, Rachel comes across a secret formula that her mentor, Dr. Hunter, had been perfecting.
第 7 集 Alone and Unafraid
播出时间：2015年7月27日
While XO Slattery struggles to evade a submarine, Chandler and his team infiltrate a compound on land.
第 8 集 Safe Zone
播出时间：2015年8月3日
Still trying to piece together Dr. Hunter's lost formula, Rachel grapples with her sworn enemy's presence on board the Nathan James.
第 9 集 Uneasy Lies the Head
播出时间：2015年8月10日
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.
第 10 集 Friendly Fire
播出时间：2015年8月17日
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.
第 11 集 Valkyrie
播出时间：2015年8月24日
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.
第 12 集 Cry Havoc
播出时间：2015年8月31日
Nathan James finds itself trapped between the submarine and civilian blockades.
第 13 集 A More Perfect Union
播出时间：2015年9月7日
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.
