Pamela joins the group as they set sail for Mexico to avoid the nuclear fallout in the United States, but the problem is none of them knows how to navigate a yacht.

Tandy creates a plan to escape from Pamela while the rest of the group discovers a man stranded on an island.

Pamela tries to redeem herself as the group finally reaches Mexico.

Carol and Tandy come up with a plan to convince everyone to stick together.

The group moves into a mansion that was once owned by an infamous cartel leader.

Tandy feels ready to face the challenge when Carol's pregnancy takes an unexpected turn, but Gail wants to intervene.

Tandy tries to convince everyone he's a feminist.

Todd asks Tandy for advice when Jasper begins acting more reckless than usual. In the meantime, Carol and Erica both want Jasper to be their babies' suitor.

Tandy and Todd meet a man who's been in a Mexican prison since the virus hit.

Tandy and Todd introduce Karl to the rest of the group as the search for Jasper continues.

Tandy and Todd try to convince the others that something has to be done about Karl; Jasper remains missing.

Tandy tries to be responsible to earn Gail's approval; Todd gets mad at Melissa for keeping him away from Jasper.

Todd falls into a deep depression, so the others try to cheer him up.

Todd clashes with Erica, but Melissa is determined to bond with her; Carol thinks a new person may be close.

Tandy makes a surprising discovery that proves to be positive for the group, but sends Todd into a spiral.

A thermal heat detector indicates life outside Zihuatenajo, but Tandy is against splitting up the group to investigate.

The gang are surprised at what they find when they go out in search of what they assume to be a sign of life, while Todd makes a few discoveries of his own back at the mansion.

The gang decides to leave the mansion in Zihuatenajo and find a new place to live, but Tandy has second thoughts.