A college football player's death during practice bothers Nate, who earlier learned of his own potentially fatal condition. Meanwhile, Federico's request to borrow money from Nate and David is rejected, and he later learns of their newest purchase: a 'casket wall' display.

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.

The Christmas season marks the anniversary of Nathaniel's death...and gets everyone thinking about their last moments with him. Meanwhile, Nate and Brenda are shocked by Margaret Chenowith's Christmas Eve guest, Claire gets into a dangerous online relationship and Federico stirs up trouble in his own family.