When a 911 operator gets a call from a young person who is constantly telephoning in false alarms, the operator tries to hang up but she hears a shot so the team is sent to check it out. When they arrive they find a woman shot, and the girl is not there. They also find several ids. When the woman wakes up she reveals that her daughter witnessed a crime a few years ago. So that the authorities can catch the criminals, they went into hiding.
Spoilers ahead. Coverage follows the scope labeled below.
Complete story — includes the ending
Alexis, a grade-school girl who has built a relationship with a 911 operator over the course of a series of false alarms, appears to be threatened with a real kidnapping. Team One learns that Alexis and her family are federally protected witnesses, after she witnessed the murder of her friend by three corrupt police officers, who are now in pursuit. Alexis ends up running on her own, believing she is alone in the world. Greg's son, Dean, comes to the station.