Episode Name: Aliens in a Spaceship
Episode Overview: The bodies of twin boys, kidnapped five years earlier, are discovered. The investigation lead Booth and Brennan to a notorious kidnapper known as the Grave Digger. During the investigation, Brennan and Hodgins become the Grave Digger's next victims.
Episode Number: 9
Episode Season: 2
Episode First Aired: 2006-11-15