Mac and team rush to help when Matty's former mentor, Ian Cain, and his embassy staff come down with a deadly, mysterious illness. Also, Taylor and Bozer work with Jerry Ortega.

Cast: Lucas Till, Tristin Mays, Justin Hires, Meredith Eaton, Levy Tran, Henry Ian Cusick, Robert Patrick, Sunny Mabrey, Jorge Garcia, Carey Van Driest, Daniel O'Callaghan, Jordan Trovillion