Sam considers adopting a roommate of her own as Joel and Brad move in together; Tricia gets back into the dating scene after finalizing her divorce.
Overwhelmed by the amount of change happening in the lives of her loved ones, Sam is hit especially hard by a friend's brutally honest comment; Sam helps Brad with a special task ahead of his and Joel's housewarming.
Sam and Tricia's trip to Kansas City hits an unexpected snag; Joel runs into a complicated figure from his past at Brad's bible book club.
Surrounded by her sister and chosen family on Thanksgiving, Sam gains a better appreciation of what it means to love.
Joel finds himself feeling unstable after an accident; Sam realizes her deepest insecurities as she goes on a date with Iceland.
Joel returns to his old parish; Sam and Tricia realize that they have both forgotten Holly's birthday; Sam gives Iceland a chance.
While he rents out his house, Joel and Sam revel in the highs of their temporary living situation and the lows of cleaning up after strangers; as a newly single Tricia prepares for an empty nest, Sam is overcome with unexpected emotion.
As Mary Jo's behavior worsens, Sam and Tricia grapple with the difficult decision to escalate her care; as Tricia pitches her services for Fred and Susan's wedding, Joel has a crisis of faith; Sam struggles to get back in touch with her instrument.
While Sam and Tricia are forced to reveal why they're taking their mother to Wichita, Joel blows his own cover stalking Brad.
While celebrating Tricia's birthday, Sam is blindsided by surprising new information about Holly; as Charity's lies continue to affect Tricia's social life, Joel makes a move with Brad, which leads to a misstep with Sam.
Distancing herself from Joel, Sam concentrates on helping Tricia with her blossoming pillow business, which soon faces sabotage from Charity; Fred attempts to play peacemaker with Sam and Joel.
After reuniting with Joel at a funeral, Sam takes stock of herself and her actions and decides to make things right with her best friend; everyone comes together for an epic celebration of love and partnership at Fred and Susan's wedding.
Devastated by the recent loss of her sister, an increasingly unmoored Sam receives an unexpected lifeline from her co-worker Joel.
Sam begins to bond with members of choir practice, but her friendship with Joel is threatened over outlooks on their future; after a disappointing review and a concerning visit to her parents' house, Sam seeks help from someone close to Holly.
Sam and Joel go on a mission to uncover the source of Rick's sudden windfall; choir rehearsals give Sam the courage to share his worries about his mother, Mary Jo, with his father, Ed.
As a tornado touches down, Sam weathers a different kind of storm with Tricia.
After receiving shocking news about her job, Sam reevaluates her life.
In her quest to inspire Joel, Sam recruits a small team to help and reveals a new potential location for choir practice; on a purple party bus, Sam realizes just how far she's come.