Susan Beaubian

The BAU investigates the cause of several fatal car crashes involving drivers and pedestrians. Also, Reid gets bad news.

When Reid fears his mother has been abducted, he asks the BAU to investigate while he's stuck in prison.

Khadijah freezes up when she realizes her date was the anesthesiologist at her hemorrhoid operation. Regine's first clients as a wedding coordinator are a strange couple set on holding their ceremony in a graveyard.

After a series of bank robberies, Don recruits Charlie to help chart the next robbery location, only to overlook the thieves’ true motive.

Don needs Charlie's help to find out why the daughter of a mathematician is kidnapped.

After an independent computer researcher with a contract with the Defense Department is found murdered, Don and his team are called in to find out who is responsible. When Don recruits Charlie to decode the murder victim's cryptic computer data, Charlie discovers that the victim was working on a secret and potentially damaging project, forcing Charlie to question the impact of his own life's work.