After tragedy strikes, the team must regroup and heal. With shifting alliances and major life changes, they face one of their biggest threats yet.

Wedding bells, secrets, and conspiracies collide. The team confronts powerful enemies and old wounds, all while trying to hold onto what matters most.

Major revelations and emotional upheaval challenge the team. As Booth and Brennan face life-altering decisions, their partnership enters a critical phase.

After doing a guest lecture at a British University, Dr. Brennan and Booth are asked to investigate the death of a young woman. Her father is a wealthy American businessman working in the U.K.. Their counterparts assist them in the investigation. Meanwhile Angela's husband arrives at the Jeffersonian, he is not interested in divorcing her.

The team faces chilling cases, including a cannibalistic serial killer that hits too close to home. Loyalties are tested as the line between the professional and personal begins to blur.

Aired on from 30 August 2006 to 18 April 2007