Season 5, Episode 14
No one cares about the birthday party Annie's planned for the twins because the Camdens are all too preoccupied with trying to deduce the identity of Robbie's mystery date. To make matters more complicated, Mary finds out he's going out with someone else. Meanwhile, Lucy prepares for her first big date with Jeremy. Robbie: Adam LaVorgna. Lucy: Beverley Mitchell. Annie: Catherine Hicks.
Original Air Date: Feb 12, 2001