Christy (Anna Faris) is still sober and has her life mostly back on track, though she's continually tested by her mother, Bonnie (Allison Janney).

Through it all, Christy and Bonnie rely on their support system from AA, including the wise Marjorie (Mimi Kennedy), the wealthy and sometimes misguided Jill (Jaime Pressly), the overly emotional Wendy (Beth Hall), and the loudmouth but sweet Tammy (Kristen Johnston), who was upgraded to series regular status for this season.

However, when Christy reacts to a customer who insulted her, Adam asks her to apologize, causing a rift between the two and leaving Bonnie to choose sides.

Succumbing to her loud and hostile new boss Veronica's demands, Christy and the girls go to a marijuana dispensary for the tightly-wound woman.

When Chef Rudy is court-mandated to attend 10 AA meetings as compensation for a DUI, he tags along with Christy whose patience wears thin due to his condescending attitude.

Meanwhile, after eating chocolate from Adam's night stand, Bonnie learns that her husband doesn't feel at home, prompting her to let him bring some of his personal belongings out of storage and into the apartment.

Also, Jill is worried over her recent bouts of sleeplessness, knowing she can't take any medications that would help.

Absent: William Fichtner as Adam Marjorie is surprised to get a call from her estranged son, Jerry, inviting her to meet her newborn granddaughter (Isla Rose Burton).

Special guest star: French Stewart as Chef Rudy Bonnie grows suspicious of Tammy's Aunt Cookie, believing that the woman is not taking the kidney donation and her second chance at life seriously.

Absent: William Fichtner as Adam While preparing for a charity event to be held at her house, Jill notices that several pieces of silverware are missing.

She wrongfully assumes that one of her housekeepers stole from her, only for Bonnie to admit to having taken and sold the pieces five years ago, which causes a huge rift between them.

Special guest star: French Stewart as Chef Rudy Marjorie is overjoyed to finally be trusted (reluctantly) by her son to watch her granddaughter Sofia (Isla Rose Burton).

But a medical emergency for one of her cats leads Marjorie to enlist Christy to help, and a chain of comedic errors brings Bonnie, Jill, and Tammy (and avowedly NOT anti-babies Wendy) into the circle of successfully taking care of the little girl.

Meanwhile, Marjorie is hired to deliver Chinese food, but she quickly finds re-entering the workforce overwhelming and calls on Christy, Jill, and Wendy for assistance.

When the women stop for gas, Marjorie and Wendy go inside, and Tammy, Christy, Bonnie, and Jill decide to change the roommate situation.