Mitzi Huntley arrives back in Nate and David's lives thanks to a comparison-shopping widow. Meanwhile, Ruth's estranged sister Sarah arrives for an unexpected visit. Later, a vodka-fueled family dinner casts a pall over Nate and Brenda's happy news.

A Jewish funeral at Fisher & Sons leads Nate to seek spiritual guidance from an intense female rabbi. Claire is surprised to meet a guy while visiting her Aunt Sarah. Meanwhile, a medical emergency prompts David to consider giving his relationship with Keith another shot. Federico's jealous suspicions about his cousin Ramon prove to be very misguided.

David and Rico are at odds over doing business with the family of a deceased telemarketer, Claire finds she has more in common with a fellow art student named Russell than with Phil, and Ruth meets a new friend, Bettina. Meanwhile, David and Keith get a taste of a different kind of family life and Carol continues to make life miserable for Lisa.

Ruth goes on a fossil hunt with George, and digs up Sarah and Bettina. Claire focuses her talents on Edie; Federico tries to unload on Sophia; Vanessa does some part-time detective work; Keith goes 'out' to a bar with his co-workers; David drowns his stress; Nate dares Brenda to be honest with Joe, and receives some relationship advice himself.

Ruth happily helps 'circle the wagons' when Sarah calls; David and Keith discover it's hard work playing house with Anthony and his brother Durrell; Nate muses on the loss of his first love; Claire finds a temporary financial solution; Vanessa hires a nanny with unexpected talents; Rico gets an offer he can't believe--or refuse.

While David attends to family business, Keith makes an embarrassing self-discovery on the job; Brenda is challenged by Nate and answers a hard question for Maya; Margaret compares herself to her daughter; Ruth lets Bettina play nurse; Rico and Vanessa decide to protect their future; Claire is comforted by Ted's squareness; and George makes a speech about love.

David finally embraces a demon; Keith gives 'tough love'; Nathaniel talks to his younger son; Brenda delivers and fights Nate's negativity; Claire gets an exciting call; Ted inspires sexy photos; Margaret is impressed to see Olivier's nurturing side; George's limitations eclipse his intentions; and Claire drives into her future.