Antonio Leon

Kirsten's jobless sister, Hailey, moves in with the Cohens.

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

Thony struggles to make ends meet as an undocumented worker after coming to the US in search of medical treatment for her son. After witnessing a murder, Thony cleans the crime scene and begins living a double life.

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

Thony attempts to sever ties with the crime syndicate when the FBI comes asking questions, but when her son's health declines, she ends up more deeply involved with the syndicate.

Fiona and Thony's relationship is strained by Thony's lies; Arman uses Thony's relationship with Garrett to feed information to the FBI; Thony must decide if she can work with a potential resource for a liver transplant for Luca.