Michelle Vergara Moore

When a teenager is found dead in the Hudson River, Lt. Benson (Mariska Hargitay) suspects Rob Miller (guest star Titus Welliver) is behind the mysterious death but can’t prove it. Despite having only circumstantial evidence, ADA Stone (Philip Winchester) takes the case to court before Miller can destroy more lives.

When a chaotic superstorm hits the clearing, a structural collapse puts Marybeth and Lucas' lives in danger. Eve, still at odds with everyone for thwarting their way home, desperately tries to make amends by leading the effort to dig them out. Gavin embarks on a journey into his past, which could provide a crucial piece to saving his family in the present.

With cold weather fast approaching, Eve, Levi and Ty return to the mysterious fort despite their near-death experience there in the hopes they might share their 10,000 BC survival skills. Gavin's attempts to spare Izzy pain threaten to do their relationship more harm than good.

When a stunning revelation puts Josh and Izzy's lives on the line, Eve and the other survivors desperately search for the young boy who holds the key to saving them. Gavin and Izzy must rely on a complete stranger if there is any hope to reunite their family.

With news of one last sinkhole opening, Gavin, Izzy and Dr. Nathan race to Seattle to launch a final rescue effort before it's too late. Eve embarks on a perilous journey to send a young boy though a portal in order to save her family.