Tandy tries to convince everyone he's a feminist.

Tandy tries to take charge of a new situation that has unfolded in the group, and Carol is suspicious of Todd's behavior.

Todd asks Tandy for parenting advice when he notices that Jasper is acting more reckless than usual. Meanwhile, Carol and Erica realize that Jasper may be the only potential suitor for their babies and begin vying for his attention.

The gang throws a huge celebration canvassing every major holiday, but Tandy and Todd's bro-mance hits a rough patch that threatens to end the fun.

Phil becomes annoyed at all the attention Todd is receiving and schemes to bring the attention back to himself when he finds a stray cow. To do so, he pretends to steal the cow, but when he really does lose it, Todd eventually finds it and allows Phil to take the credit. That night, the group discovers that the cow has apparently wandered up the stairs of Carol's house and is now stranded, causing Carol to officially move in with Phil. In a brief flashback, Carol is seen purposely bringing the cow upstairs.

Tandy and Gail face off in a major disagreement, on which the whole group must weigh in, and Carol is forced to choose a side. Meanwhile, Melissa, Todd and Erica each have major milestone moments.

Pamela tries desperately to redeem herself with everyone, as the gang finally reaches Mexico. Meanwhile, Todd is disappointed that Zihuatanejo is not the paradise of which he'd dreamed.

Tandy tries being a helpful, responsible adult in order to finally win Gail's praise. Meanwhile, Todd is furious with Melissa for keeping him away from Jasper.

Todd sinks into a deep depression, leaving the rest of the gang to console him. Meanwhile, Tandy and Carol can't keep their hands off each other.

The knowledge that Todd and Melissa are having sex drives Phil to manic despair, so Phil arranges a community meeting to discuss grievances. However, his plans go awry when everyone instead agrees that he should clean out the pool he has been using as a toilet. The next day, Phil schemes to leave Todd in the desert to die, but his conscience prevents him from doing so. Todd expresses gratitude to Phil for helping him find his way to Tucson, which motivates Phil to finally clean out his toilet pool and bring an outhouse into his home, much to Carol's delight.

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

Carol will stop at nothing to get the perfect family photo. In the meantime, Melissa has her own mission, Lewis looks for a new hobby and Gail ends up in a scary situation.

Carol enlists Tandy and Erica to help find answers when she makes a shocking discovery. In the meantime, Todd has a breakthrough with Melissa.

Carol's pregnancy takes an unexpected turn; Gail is concerned about Tandy as a father; Melissa discourages Todd's baby fever.

While Todd butts heads with Erica, Melissa is determined to form a strong female friendship with her. Meanwhile, Carol grows suspicious that a new stranger could be living nearby.

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 search for a new home isn't easy for the group, especially when someone may be deliberately trying to stop them. Meanwhile, the love triangle between Todd, Gail and Melissa starts losing steam.

The group sets off to find Melissa when they find a note she left saying "Goodbye". In the meantime, Gail has her own adventure.

Todd and Tandy dig deep into Melissa's pre-virus past, as they search for answers about her illness, and Carol adopts a new outlook on life.

Re-population is the talk of Tucson as Phil navigates the choppy waters between Carol and Melissa.

Phil Miller continues to live in Tucson.

Phil/Tandy finds redemption when he saves the day.

The group's road trip is marred by internal squabbles, but Gail might be the first to lose control.

Carol panics when Todd and Melissa leave for their honeymoon, and Erica and Gail decide to live on their own for a while.