Paul receives a promotion at work, and attends a congratulatory dinner without Cathy. Adam attends a house party, where teen-aged peer pressure places him between a rock and a hard place, which he makes all the worse by his actions following a comment by Andrea. And upon hearing whether she's been accepted into an experimental therapy clinical trial, Cathy embarks upon another of her life firsts, this one she shares with Lenny. These three events converge in a couple of revelations, a car accident, and a decision by Paul as to his future with Cathy. Meanwhile, Sean sets Marlene up on a date. And Cathy learns that Dr. Todd is ready to pop the question to his girlfriend.