Ep 21. The Mayhem on the Cross

In Bones season 4 episode 21, titled "The Mayhem on the Cross," the Jeffersonian team investigates a murder that takes place inside a church. When a man is found dead on the altar with his arms spread in the shape of a cross, the team must determine the motive behind the killing and catch the culprit responsible.

Led by Dr. Temperance Brennan (Emily Deschanel) and FBI Special Agent Seeley Booth (David Boreanaz), the team immediately begins to gather evidence and interview suspects, including the priest of the church and the victim's family and friends. As they investigate further, they discover that the victim was involved in a controversial research project, and had many enemies.

Meanwhile, Brennan is also dealing with personal issues, as she is forced to confront her own beliefs about religion and faith in the aftermath of the murder. She clashes with her colleague Dr. Camille Saroyan (Tamara Taylor), who has a strong Catholic faith, and struggles to reconcile her scientific approach to life with the spiritual aspects of the investigation.

Throughout the episode, there are tense moments as the team races against time to catch the killer before they strike again. As more clues are uncovered, they begin to piece together a complex web of deceit and betrayal that ultimately leads them to the shocking truth behind the murder.

With its blend of suspenseful crime-solving and personal drama, "The Mayhem on the Cross" is a gripping episode of Bones that will keep viewers on the edge of their seats from start to finish.