S5, E10: Sarah Rendell (Nicole Leach), a 19-year-old babysitter and Veronica Nash (Olga Merediz), an officious, older nanny are watching the children in the park. Lucy, who's under Sarah's care, disappears and they call the cops. Stabler (Christopher Meloni) finds her lying in the bushes with a massive head injury. The Detectives are looking for a pedophile and their best lead comes from prints taken from a film box found at the scene. Veronica described a dark, middle-aged, stocky man who she thought was suspicious, but it turns out he was a P.I. hired to spy on a nanny. Lucy is barely alive; she's had surgery and is on life support. M.E. Warner (Tamara Tunie) drops a bomb, claiming her injury was caused by being shaken about 12-48 hours earlier and not at the park.