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.

When Todd suffers from major remorse over recent actions, Tandy tries to lift his best friend's spirits - even if it requires a few white lies.

Tandy sets up a unique alarm system in the house, but Melissa has already put her own safety precautions in place. The whole group decides to enjoy a change in scenery.

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

The group continues to search for a new place to live, but someone may be sabotaging their progress. Meanwhile, the love triangle between Todd, Gail and Melissa hits new road blocks.

Tandy attempts to develop his new friendship with Lewis by learning about his past. Meanwhile, Carol asks Gail for a big favor and Todd addresses Melissa's mental state head-on.

Carol is hell-bent on capturing the perfect family photo and will stop at nothing to get it. Meanwhile, Melissa has a surprising mission of her own, Lewis looks into a new hobby and Gail finds herself stuck in a scary situation.

After finding a mysterious note left by Melissa that says "Goodbye", the gang sets off to go look for her. Meanwhile, Gail gets stuck on a solo adventure of her own

Carol is bummed about Gail's absence, so Tandy tries to cheer her up with the honeymoon vacation they never had. Meanwhile, Lewis finds new success with his pursuits in aviation and Melissa is contained.

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

After being locked up for her own safety, Melissa plays hurtful mind games with the group. Meanwhile, Todd and the group explore medications that might help her, and Lewis goes on a new solo 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.

Carol makes a big discovery, enlisting Tandy and Erica to help her track down some answers. Meanwhile, Todd has a major breakthrough with Melissa.

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

The gang has one huge celebration to cover every major holiday; Tandy and Todd's relationship hits a rough patch.

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.

The long term consequences of surviving an apocalypse start to have a major impact on the group, whose daily life is upended.

The long term consequences of surviving an apocalypse start to have a major impact on the group, whose daily life is upended.