A medical condition and a marriage proposal leave the group in turmoil.

Phil and Mike grow closer than ever and the whole Malibu group gets a big friggin’ surprise.

The first moments of the deadly virus outbreak are revealed through a special lens.

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

Phil and Carol reconcile their differences.

Phil and Carol leave on their road trip across the United States, but Carol quickly regrets her decision to leave.

Mike Miller’s space capsule careening through the sky toward Earth, finally putting him on the same planet as his big brother, Phil. Mike thinks he is the last man on earth, but who knows what or whom he might encounter.

He has traveled to every city, every town and every outpost in the United States, Mexico and Canada, and has found no one. As he returns to his hometown of Tucson, Phil comes to the realization that he is almost certainly the last living being on the face of the earth.

As Tandy gets used to having his brother back on Earth, Todd begins feeling left out; Mike discovers more about Erica than the group has ever known.

Tandy wants to learn about Lewis' past, while Carol asks Gail a favor and Todd helps Melissa deal with her mental state.

A new woman joins the group and tries to find her place while everybody else prepares to set sail for Mexico.

Along with most human life, the virus wiped out normal traditions and holidays. As Christmas approaches, Carol spearheads a “Secret Santa” gift exchange to spread some festive cheer.

Tandy and Todd stumble upon a new survivor, Karl, who has been trapped in a high-security prison in Mexico ever since the virus hit.

The gang ventures out in search of what they think could be a new sign of life, but are surprised at what they actually find. Meanwhile, Todd makes a few morbid discoveries of his own back at the mansion.

Phil's prayers have been answered—sort of—now that he has found the last woman on earth, Carol. He finds himself back among human existence, and somehow engaged to be married.

Phil Miller continues his life.

Phil searches desperately for Carol after they’re separated without phones or walkie-talkies.

The safety of Tandy and the group is in jeopardy as armed intruders storm the Malibu beach near their home, and no one can agree on what to do. While Melissa takes drastic action, Tandy gets a new lesson in fashion.

A new problem arises for our survivors and they decide to take to the sea, when a couple of unexpected guests crash the party.

After the graveyard incident, Tandy and Todd try to convince the rest of the gang that something is majorly wrong with Karl and something needs to be done. Meanwhile, Jasper is still missing.

Phil and Carol are shocked to find Melissa, another survivor, just after Phil reluctantly agreed to marry Carol. Phil finds himself in a pickle and has to work fast in order to save human existence.

Tandy and Todd introduce newcomer Karl to the rest of the gang. Meanwhile, the group searches for Jasper, who has gone missing.

Phil finds out he's not the last person left on Earth, but things aren't as wonderful as he would have hoped.

The cul de sac decides to have a re-election for the President of the United States.

Everyone is mad at Phil for lying as they refuse to speak to Phil, and he is shunned. Carol also holds a grudge against Erica and Gail. Phil confronts the group and tells the truth about various issues, including the fact that he never wanted to marry Carol. Carol, who is a notary, divorces Phil, then forgives him and invites him back to the cul-de-sac.