S6, E15: Kovac witnesses an accident and saves the young victim's life. Carter slowly recovers from his brutal attack and undergoes excruciating physical therapy. Hathaway helps two sexually active 14-year-old girls. One girl has cervical cancer but refuses treatment because she doesn't want her parents to know she has sex. Corday is shocked to find that her mother and Greene's father spent the night together. Greene finds out that his father has terminal lung cancer. Lucy's mother visits a recovering Carter.