Dean can’t wait to spend Christmas with his older brother, Bruce, when he returns home from Vietnam. But adjusting to life back in Montgomery comes with unexpected challenges for Bruce, and the rest of the Williams family rely on their favorite holiday traditions to bring cheer

When Dean comes down with the chicken pox on his way to a hunting trip with Bill and Grandaddy Clisby, Lillian forces the three of them to quarantine together. Clisby pushes homemade remedies on them out of his mistrust of doctors, but he’s forced to reckon with this when Dean’s condition worsens.

Bruce returns home from Vietnam, and the family is shocked to find out he is dating an older woman with an 8-year-old son with whom he is eager to start his life. When they learn more about Bruce’s latest deployment, they begin to understand his survivors’ guilt and come together to support him.

Bill is excited to have made tenure at the university, only to find that his focus on career and family has cost him his spot in his band; Bruce adjusts to living at home.

Dean tries to impress Keisa's cool new boyfriend by inviting him and his friends to a party Kim is throwing while Bill and Lillian are away for the night; things get out of hand just as Bill and Lillian arrive home.

After Bill befriends Dean's music teacher, Bill and Lillian attend a party at his house and the evening takes an unexpected turn. Meanwhile, with their parents away, Dean, Bruce and Kim make their own plans for the night.

In search of a new hobby, Dean joins the drama club - only to find himself mixed up in drama of his own. Bill and Kim grapple with Bruce's choice to campaign for a local politician.

When the Williams family decides to go on a family vacation, Kim suggests a road trip to Austin College and Dean proposes a stop at Disneyland. After meeting up with his old bandmates, Bill reflects on his life choices.