A woman's car is run off the road and she is killed, but her baby miraculously survives the accident. Booth and Brennan go to the woman's hometown to try to find out who's responsible for running her car off the road. Bones, with help from Booth, takes care of the baby until the team finds out who killed the mother.
When delivery of another collectible leads to Penny's lashing out at Leonard, he decides it's time to give up his habit, much to his friends' protestation.