Bobby and Kim are having coffee at the station, and Bobby is whining about Matt and Serena doing each other for two years. Kim tells him about a friend of hers going through AA and having to tell Kim that she slept with Jimmy while Kim and Jimmy were engaged, and that the friend told her that if she didn't tell Kim about it, they couldn't be friends anymore. Bobby asks her if they are still friends, and Kim tells him she hasn't spoken to the woman since that day. Then they get a call about a hit-and-run with a school bus.
Doc and Carlos get to the scene with the school bus, and a nun is telling them that two kids are next to the bus and a third was thrown down the street. Doc runs to check on the thrown girl, and Carlos sees the boy sitting next to the bus and asks what's wrong with him. The boy hurt his leg, and as Carlos is getting a bandage to stop the bleeding on his leg, someone calls for him because the girl sitting at the other end of the bus is in a lot of pain. Carlos tells a guy standing near him to press on the bandages on the boy's leg so he will stop bleeding, and then goes to check on the girl.
Doc sees a trail of books and blood, then sees a girl lying face down. He tries to talk to her, but he gets no response, so he turns her over to check her out. Now, I need to point out here that there is nothing in the girl's hair, and her hair is dry. You will understand why later.
Carlos gets to the other girl and asks her what hurts. She tells him her stomach hurts, and as he starts to check her out Bobby and Kim arrive with bags of equipment. Bobby takes care of the boy, and Kim runs over to help Doc. Doc tells Kim that the girl is in arrest and he needs her to tube the girl. As Kim gets the tube ready, Doc starts CPR. Carlos calls over Bobby to tell him that the girl has abdominal pain and that little boy is left alone again, and he looks very scared.
Sully arrives and asks Doc and Kim if they have everything they need. Again, I need to note that the girl's hair is dry and has nothing in it. They tell Sully they have everything, and Doc tells him it was a hit-and-run. The nun is standing by them, and she tells Sully that she was driving the bus and had her warning lights on while she was letting the kids off when a car drove by and never slowed down. Sully asks if she can describe the car, but the only thing she remembers is that it was gray. Some men on the sidewalk tell Sully that they saw it all, and that the car was gray, made in '89 or '90, was not in good condition, and had the trunk wired shut. Sully asks if they can describe the person driving, and all they can tell him is that it was a black man.