7th Heaven - Season 5 Episode 14
V- Day

Marys feelings for Robbie resurface when she inadvertently finds out he has a secret date for Valentines Day, and the whole family schemes to uncover the mystery woman. Meanwhile, with the exception of Lucy who has a date with Jeremy, the other Camden kids feel deflated when their Valentines plans fall through and they end up stuck at home celebrating Sam and Davids second birthday. Lucy and Jeremys first date does not go as expected as they both keep on running into Lucys ex-boyfriends. Although alls well that ends well by the end of the episode for everyone.