A routine flight takeoff is interrupted by an anxious passenger, a woman who knows more than she’s saying, and a distant scream on the other end of the phone.

As the plane takes off, Jake tries desperately to text his mother, while Marcus vomits into a bag as his wife tries to comfort him.

The flight attendants begin to serve drinks throughout the cabin, and Jake has a short discussion with Connie about how he ended up on the plane without his mother.

Marcus starts to feel sick and urgently has to use the lavatory. His wife claims, he suffers from reflux.

The passengers are asked to prepare for the descent to Phoenix. As Marcus is still in the bathroom, the flight attendants urge him to come out.

As a blackout continues to roll across Phoenix, Alex urges Deirdre not to open the door. Suddenly, the bathroom door opens and Marcus falls out, unconscious.

The passengers learn what they're up against as the plane re-routes from Phoenix to Los Angeles.

Anthony, an U.S. Air Marshal demands that all the passengers return to their seats, despite Alex's warning that Marcus is now dangerous.

Marcus has turned into a walker and after a struggle the group shoves him back into the bathroom. Once he is secured they notice blood on themselves and determine that Deirdre was scratched on the arm.

Alex tells Anthony to secure Deirdre since she has been bit and will turn like Marcus. Alex tries to convince the Captain to land the plane, but all the cities are experiencing power loss.

Suzanne mourns the loss of her husband from outside the compartment door where he is held while he continues to bang on the door from the other side. Anthony tends to Deirdre's bite wound.

When Suzanne's husband stops banging on the door, she fears that it is a sign he is dying. She then unlocks the cabin bathroom door releasing him into the isle where all chaos breaks loose.

With Marcus on the loose, Jake finds a knitting needle and hands it to Alex who takes care of the situation. Once it's done, the group notices a crack has formed in one of the plane's windows and it's starting to spread.

Suzanne who has been bitten is comforted by Deirdre while Alex takes matters into her own hands concerning how to deal with the bite wound. The window which has been slowly cracking finally completely shatters.

As the airplane cabin depressurized, the passengers struggle to find available seats and strap on oxygen masks. Alex and Jake buckle in next to each other and she makes a startling revelation to him.

As Nick is scoping out houses to break into, he looks up to see Flight 462 teetering back and forth as it approaches LAX.

我们的家庭坐着斯特兰德的游艇逃出了已成一片火海的洛杉矶。斯特兰德还是很神秘。我们的团队在海上遇险。

我们的团队和一户幸存人家共住庇护所。麦迪逊试图揭开这家人的真实动机。萨拉扎则想解开斯特兰德的企图。

麦迪逊阻止斯特兰德去神秘目的地。尼克、艾丽西亚和其他人在检查一架飞机残骸。

一个落难家庭登上了阿比盖尔号。斯特兰德改变方向，他的过往也开始浮出水面。尼克开始寻找一个和维克多相熟的人

艾丽西亚努力与家人团圆。特拉维斯和一个熟人相遇。麦迪逊和尼克克服一切困难，为拯救家庭冲锋陷阵。

斯特兰德快到目的地时，冲突发生了。克里斯做了一个动摇整个家庭的决定。尼克遇见了一个新的母性形象。

我们的家庭面临前所未有的巨大挑战。尼克、麦迪逊和特拉维斯以及众人付出很大努力，让大家始终团结在一起。

尼克坚持不懈地寻找答案，结果误入了一处自相残杀的地块。他过去黑暗的一面被揭露出来。

院子倒塌后，麦迪逊、斯特兰德和众人一起沿一条小径前行。与此同时，尼克应征去完成一个危险的任务。

特拉维斯寻找庇护所期间努力争取和克里斯取得联系。而与此同时，艾丽西亚遇见了一个孤独的女人，她有着血腥的过去。

艾丽西亚和麦迪逊要联合两个互相敌对的阵营。尼克借鉴过去的经验在殖民地扮演新的角色。

麦迪逊发现一个酒店住客变得野蛮后迅速采取行动。与此同时，在殖民地，亚历杭德罗展现出自己的阴暗一面。

难民涌入酒店，其中居然有我们团队中的人。麦迪逊在努力适应这种情形。

特拉维斯在酒店被新来的难民偷袭。尼克必须要决定是离开殖民地还是和露西亚娜在一起。

特拉维斯的怒火导致罗萨里托海滩酒店内发生动乱。麦迪逊必须决定她是否要支持特拉维斯。尼克成为殖民地的领袖，毒枭也在步步逼近。

A fearsome survivor agrees to help an injured woman in exchange for apocalyptic sanctuary.

The story revolves around Althea Szewczyk-Przygocki, who interviews various survivors. Ed, who narrowly escaped death, tries to return home to Oregon and agrees to tell his own story if he is transported to Texas. Meanwhile, Althea is convinced that her videos are of benefit to the survivors and hopes for a better future. Her new interviewees are CJ and Earl, friendly travelers who are willing to share stories about how they survive in a harsh and changing world.

The USS Pennsylvania runs weapons drills during peacetime in the Gulf of Mexico.

A man dies; something bad is going on.

Penetrating the skull is the only way to stop the enemy.

Advancing quickly; sticking together; firing is not allowed unless absolutely necessary.

Riley does what needs doing.

The new mission is to survive.