Ruthie and Peter get separated from their classmates on a field trip. Kevin and Roxanne go undercover for a police assignment. Chandler struggles as a new parent.

Kevin makes a fine Father Christmas and knows the ideal gift: a dog, but Lucy insists to wait till after the holidays, then sneakily goes to the asylum herself, only to find their tastes in canines differ greatly. Heathen Rose has no clue what Christmas has to do with Nativity, so she 'tests' the twins, but in the process makes them doubt if either Santa or Jesus really exist. Sandy isn't keen either to participate in the parish's nativity scene. In the end, things work out as by Christmas magic.

Kevin feels that Lucy is too lazy to grocery-shop as she keeps promising to do; she hates that he buys wholesale and throws out everything officially past its expiration date, and he is pragmatic about his New Year's resolution to save money before they have a second baby. The twins spend $50 of their savings to help Darfur through Nicodemus, a Sudanese refugee who once helped Ruthie get home from a school field trip. The reverends oppose several old deacon votes Lou informs them of on matters from office furniture for Lucy (the selfish priority openly disgusts Kevin) to whether Darfur is too political a cause to get the parish's financial support. Ruthie arrogantly pretends her Scottish political talks make her an expert on all world problems compared to T-Bone, who never traveled overseas and doesn't even own a computer, but he soon finds that Margaret has doubts about the material Jane gave Ruthie, and in mere hours he learns more than she knows. Kevin tries to educate the girls, who react emotively and show generosity.