It’s Fran’s birthday, and Jamie wants to celebrate, but it seems none of their friends are available to come to dinner. To make matters worse they’re stuck in the van…

Shy Natsu awakens as part of a group chosen to ensure the survival of humanity. Together, they have to survive on a changed Earth.

Ryo orders Hana to join him in searching for a water source underground, putting her in a vulnerable position. In the caves, Ango recalls Shigeru.

Hana becomes convinced that Ango will kill her if she stays in the village. Natsu and the others make landfall near the former Autumn settlement.

Ango recalls his harsh upbringing in the program and the brutal graduation test that winnowed the survivors down to the final Team Summer A members.

To survive, Hana and the others work together with Team Summer A. On the ship, Hotaru’s cousin Hibari tells Natsu that Hotaru is slowly dying.

Hana’s group and the Team Autumn survivors find the Spring settlement destroyed and abandoned. Momotaro wakes up among strangers.

Hana and her companions discover a massive underground shelter. They find a survivor’s diary and learn the cruel fate of those who took refuge there.

Aramaki joins Team Spring, despite Fujiko’s doubts. Hana decides to search for Arashi after hearing that Aramaki met someone who fits his description.

Arashi, Natsu and Semimaru stumble upon the Team Autumn settlement in the former Kobe region. They seem to be thriving, but their leaders are tyrants.

Natsu’s clumsiness indirectly leads Team Summer B to the rest of their group. Her memories help them figure out their location, and their next moves.

In the ruins of Tokyo, Natsu, Arashi and Semimaru meet the sole survivor of Team Winter. Team Spring reaches Mt. Ogino Fuji and finds Natsu’s message.

Along with three others, Natsu wakes up with no idea what’s happened. The four of them reach an island and try to figure out a way to survive.

Convinced that Botan has kidnapped them, Natsu and Arashi sneak out of camp and run into another survivor. Finally, Botan reveals what she knows.

Ruth isn’t happy about Marty and Wendy’s plan to bury the hatchet with Frank Jr. The Byrdes make a difficult decision about Ben. Maya is reprimanded.

Ben’s confrontation with Helen and Erin sends the Byrdes into crisis mode. Meanwhile, Sam’s concerns about the FBI inspire little sympathy.

While Wendy battles personal demons, Marty struggles to keep their lives from falling apart. Darlene does Ruth a favor.

Maya steps up her bid to turn Marty, whose eerily calm demeanor has Wendy worried. The Byrdes buy a horse farm on behalf of Navarro.

Marty and Wendy tell each other how they really feel, Ruth confronts Wyatt, Darlene lets her ambitions be known, and Ben’s past comes into focus.

The FBI questions Ruth, tensions between Cosgrove and Marty hit a new high, Sue takes on a new patient, and Wendy recruits for her foundation.

Wendy asks Helen – not Marty – to help close a deal, the Byrdes get a new houseguest, and business goes boom aboard a rival casino.

The FBI dives into the casino’s finances, Wendy’s dreams take a dark turn, and Marty worries that the writing may be on the wall.

As Wendy, Helen and Ruth strive to keep the business humming, Navarro plays mind games with Marty, who worries he’ll never see his family again.

Marty is pressured to move money ahead of schedule, Wendy pitches a high-stakes plan, Wyatt lives the good life, and Ruth butts heads in the casino.

Jamie seeks vengeance, putting him on a collision course with Ambrose.

After a major turn in the case, Ambrose’s tactics are scrutinized.

Ambrose investigates Jamie’s past. Leela gives birth as Jamie’s anxiety reaches a breaking point.

Ambrose pursues Jamie through New York City and tries to prevent another homicide.