Tom fears that nobody will attend his in-person book reading; the family presumes Tom's biggest fan to be a stalker, but the mysterious woman turns out to be something even more shocking.
Tom, Sarah, and Connor wrestle with their conflicting emotions on Thanksgiving; Marina and Denise see the new addition to the family as a potential chance to gain a new normal.
After Marina begins working with a hunky new contractor, Tom's envy causes him to overcompensate; Connor involves Denise in his scheme to impress a new woman.
Tom feels threatened when Marina's father visits, but it's Marina who has a hard time making peace with her Papi; Connor helps Sarah and Denise declutter their small apartment.
As Tom struggles to finish his book, his dad Marshall hijacks his writing seminar; Denise convinces Marina that she needs to do something special for Tom's 40th; Sarah and Denise try to impress a potential sperm donor.
Tom attempts to keep Connor grounded after he announces his plans to go to space; Marina gets stuck while trying to transform the attic into a writing space for Tom.