Booth and Brennan are ordered to the cell of serial killer Howard Epps to identify the remains of an inmate. To their surprise the charred remains don’t belong to Epps.

It’s soon learned that Epps has escaped and is on a revenge path, which involves Booth’s young son, Parker. Due to the danger of the case, Brennan must get FBI protection.

Cam inhales a toxin while performing an autopsy, which puts her life in danger.