When four women from different walks of life are brought together by fate to witness the end of the world as they know it, each must find a way to survive against the odds as well as learn to rely on each other.   

It’s an ordinary workday when intelligence analyst Lexie Martin learns about a horrific chemical weapon attack abroad. Just an ordinary day...until a stranger breaks into her house and warns her to forget what she saw and heard, setting off a chain of events Lexie thought only happened in movies. Falsely accused of stealing intelligence and unsure of who to trust, Lexie quickly realizes the significance of the intel and that she must do everything she can to keep it safe. And as she runs—maybe for her life—Lexie knows she needs something, or someone, to help her.

Ellie Fisher loves most things about being a nurse in the emergency department . . . just not working with Regina Novak, an icy attending physician who acts as if she's God's gift to medicine. The dislike is completely mutual. Regina thinks Ellie is a starry-eyed romantic with a sentimental attitude that has no place at work. When Regina gets talked into volunteering at a singles auction, Ellie accidentally bids on her—and ends up winning. Oops! Since the money raised is for a good cause, they reluctantly decide to go through with the dates.

Georgia Hamilton is an adventurer. After a life spent exploring the most remote places on earth, she's found her way back home to Scotland, where she teaches her expert survival skills. Kelsey Campbell has spent her whole life acting, both personally and professionally, and has had it with the pressure of keeping everyone else happy. Craving somewhere far from the glaring spotlight, she signs up for a two-week team survival course.

Grieving over the loss of her family and feeling like her life is unraveling, Lindsey McDermott quits her job, gets a puppy, and retreats to her grandparents' home in the Texas Hill Country. She spends her solitary days walking childhood trails and reminiscing, trying to reconcile the conflict within her as she struggles with survivor's guilt. After the death of her husband, Hannah Larson needs a change. At the suggestion of her mother-in-law - and against her better judgment - she and her son Jack move to tiny Utopia and into her husband's grandmother's house.

Just back from her second tour in Afghanistan, NYPD Detective Chiara Corelli goes undercover to expose a ring of dirty cops. But when she's ordered to kill to prove her loyalty, she aborts the operation without having identified the leaders. Now, Corelli is the one exposed. With her brothers and sisters in blue ostracizing her, can she trust Detective P. J. Parker to watch her back?

Boston Homicide Detective Caitlin Reagan walks a razor's edge, propping up her life on emotional constructs designed to help her manage grueling PTSD. She keeps her mother, boyfriend, and work separated and controlled, all in service to one horrible, tragic act she committed amid the Iraq war.

Alexandra Castle hides the brightest part of herself. She is the perfect daughter and heir-apparent to the Castle Resort empire. To her controlling father, her only fault is that she's gay, so she keeps her sexuality out of the public eye for his benefit. With his retirement on the horizon, he pits Alex against her corner-cutting twin brother in a high-stakes competition to choose who will take over the company. Just when she takes the lead, an ex-lover reappears, threatening to destroy her life.

Sydney MacKenzie, personal assistant to the rich and famous, is looking forward to a well-earned break to go travelling in her beloved VW camper van, Gertie. That is, until Gertie cries off sick. When her boss calls in a favor, one that will pay Sydney handsomely and put Gertie back on the road, she can’t refuse.

With her betrothal imminent, the beautiful Princess Ava has gone missing. Where has she fled to? Why has she gone? And why is the dragon stirring? Enter our hero. Gwen has been hunting wanted criminals for years, collecting bounties to provide for her mother and brother since the death of their father. The promise of an armful of gold for bringing the princess home is too good to ignore. But bringing her home doesn't solve anyone's problems. Gwen still has family to support, and Ava still has a miserable marriage to look forward to.