As the Christmas season takes hold, Meg decides to spend more time with Luke, venturing to the rough streets of North Philly (with Roxanne) to hear him play with a local Church choir. Meanwhile, JJ catches the eye of a slightly older and more experienced country club employee and sneaks out of the house, just as Meg is sneaking in. Catching on to both of his older children's escapades, Jack implores a slightly uneven standard of discipline, by grounding Meg, but saying virtually nothing to J.J. Angering the family's growing feminist Helen. Patty finds out that Will broke the Virgin Mary, and replaces it with a slightly larger version. Elsewhere, Henry enjoys the recent success his advertising ideas have brought the store, but a few choice words from an over-eager friend leaves Jack concerned he might leave.

Advance Preview With Christmas a day away, Meg (Brittany Snow) and dance partner Jimmy Riley (guest star Jesse Hutch) are voted one of ""Bandstand's"" favorite couples landing them a date under the mistletoe for their first kiss, which hurts her budding relationship with Luke (guest star Jamie Elman). Meanwhile, JJ (Will Estes) receives an early Christmas present with his acceptance into the University of Notre Dame, which prompts him to reconsider his break-up with longtime girlfriend, Beth (Rachel Boston). Elsewhere, Jack's (Tom Verica) military expertise is called upon when a local boy serving in Vietnam goes missing and Henry (Jonathan Adams) looks for a raise during the store's holiday rush. R&B singing star Ashanti (""Foolish"") guest stars as 1960s pop sensation Dionne Warwick singing ""Walk on By"" on ""American Bandstand."" Gail O'Grady, Arlen Escarpeta, Ethan Dampf and Sarah Ramos also star.

Meg gets two Cs on her report card and Helen, more concerned about it than Jack is, thinks it would be a good idea for Meg to accompany her to her Temple class. Meg dislikes the idea, but not as much as she dislikes the fact that Luke agrees with her mother. Roxanne is also at odds with her mother, so she stays with the Pryors. Meanwhile, Beth notices JJ talking to Colleen; Jack hires Henry's nephew, Nathan; and it seems that there's a bullying problem in Will's third-grade class.

Preparing for the East Catholic Valentine's Day dance, Meg tries to convince boyfriend Luke of the importance of the holiday, while Roxanne waits for a brave boy to ask her to the dance. Meanwhile, Jack, prompted by his doctor, seeks a second opinion regarding his lingering sickness, while JJ searches for forgiveness from Beth. Elsewhere, Patty braces for her own Valentine's Day festivities as she makes arrangements for her first coed party.

As Meg's (Brittany Snow) recently rekindled romance with Luke (guest star Jamie Elman) begins to heat up, she grows concerned over his level of ""experience"" in matters of love. Prompted by some sagely wisdom from Roxanne (Vanessa Lengies), she attempts to broaden her sex appeal with shocking results. Elsewhere, Jack (Tom Verica) decides to rethink Nathan's (guest star Keith Robinson) employment status after learning of Helen's (Gail O'Grady) brush with danger, and his involvement in her defense during the recent voter registration drive. Meanwhile, JJ (Will Estes) re-ignites his romance with Colleen (guest star Jessica Collins) as he prepares to celebrate his 18th birthday and Helen agonizes over her own secret from that fateful day with Professor Wit (guest star Robby Benson).

JJ's senior prom is coming up but he's not going because Colleen has made him another offer. Then he hears from Beth. In other prom-related doings, Meg's new friend Carol invites her---but not Roxanne---to a pre-prom sleep-over at her house. Meanwhile, Patty's afraid that no one likes her (there's some reason for this: she has a reputation as being a ""know-it-all""); Natha puts Henry in another delicate situation at the Girard Avenue store; and Jack runs into Professor Witt near the store and senses that there might be something between him and Helen.