Sandy is a stressed-out, single mom who learns that her ex-husband is marrying a younger woman. Her friend Jesse's parents don't know that she has a family or that her sister, Gabi is married to a woman. Jesse's friend, Kristin, is juggling motherhood of a toddler, a patient boyfriend who keeps proposing, and searching for her biological mother. Bradley is a widower who's trying to raise two daughters on his own, while Miranda is too busy with her career to worry about children. When their respective problems intersect and start coming to a head, the Mother's Day holiday takes on a special meaning for all.

Kate and Felix get a surprise visitor for Christmas - an older, drunken Felix, from 2044. He's come back to visit his young family, when things were good. Before everything went to shizz.