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.

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.

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.

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.

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

Carol takes a page out of Phil’s book when she tells a lie from which it is difficult for her to recover.

Carol is back on the campaign for repopulation with Phil, and Todd’s juggling act finally puts him over the edge.

Todd considers doing a favor for Tandy and Carol. Gail's drinking becomes an issue.

The population may be small, but it’s still big enough for big, dark secrets.

Tandy and Todd attempt to solve an end-of-the-world power problem.

Phil 2 finds himself on Tandy’s level when he causes problems with the group.

With little else to do, Tandy starts a prank war within the group. Meanwhile Todd establishes his dominance.

Phil/Tandy finds redemption when he saves the day.

Re-population becomes a hot topic with the Malibu survivors.

Tandy tries to host a party for the group and Todd’s luck takes a turn for the better.

The gang look for closure following a tragic event. Melissa and Todd attempt to deal with the consequences of her surprise proposal.