Jim, a recently divorced dad, has a mishap with his daughter's beloved pet goldfish and must begrudgingly seek the help of his ex-wife and her new boyfriend, deepening the bonds of their still-shaping, unconventional co-parenting arrangement.
When Trey spends his first night at The Nest, he discovers evidence that Jim and Julia once had a more adventurous relationship than he imagined and he must erase it.
For Grace's birthday, Trey gets a reservation at the best sushi restaurant in Boston, upending the annual family tradition of dinner at a red sauce joint and inadvertently hurting Jim's feelings.
Julia, craving more personal time with fiancé Trey and hoping to create more space for their burgeoning relationship, takes it upon herself to find a new girlfriend for Jim.
When Trey's high profile gets him out of a speeding ticket, Julia and Jim worry about the message it sends to their children, causing Trey to try to get another ticket on purpose.
Trey is in charge of The Nest for an evening. But when Grace asks to have a friend over, Jim abandons his plans to help navigate the unpredictability of sleepovers.
Jim advises a player on the Celtics to take one of his recent losses less personally, sparking a controversy that forces the Kearney clan to confront their spiritual beliefs.
Julia helps get Jim out of a jam by lying and conniving to get his friend's kid into an exclusive private school, but there are unforeseen consequences to her dishonesty.
When Jimmy Jr.'s annual Pinewood Derby is moved to the same night as Grace's last father-daughter dance, Jim finds himself suddenly having to choose between his two children.
Hoping to confirm their compatibility, Julia and Trey ask Jim to give them pre-marital counseling, believing him to be the most knowledgeable guy for the job.