When the decaying corpse of the Venezuelan Ambassador's son is found hanging from a tree on the campus of an exclusive private school, a simple suicide case quickly turns into a web of lies, sex and scandal involving the school's staff and students.

A death row inmate asks for Booth's help to prove his innocence before he is scheduled to be executed. Booth agrees and asks Brennan and her team to help him out.

Brennan and her team are brought in to identify the body of a man found in a fallout shelter. While cutting into the bones of the man, Zach accidentally releases a deadly fungus, causing the team to be quarantined over Christmas.