Spoiler: 2/20/17 episode ALEX EXPOSES THE TRAITOR WITHIN THE CIA ON ABC's "QUANTICO" "EPICSHELTER" – The recruits learn how to burn everything down if they are ever exposed. Meanwhile, a mysterious death leads to an FBI investigation at the Farm. In the future, Alex heads back into the crisis zone and exposes the true traitor within the CIA, on "Quantico," MONDAY, FEBRUARY 20 (10:01-11:00 p.m. EST), on the ABC Television Network. "Quantico" stars Priyanka Chopra as Alex Parrish, Blair Underwood as Owen Hall, Aunjanue Ellis as Miranda Shaw, Jake McLaughlin as Ryan Booth, Johanna Braddy as Shelby Wyatt, Yasmine Al Massri as Nimah and Raina Amin, Russell Tovey as Harry Doyle, and Pearl Thusi as Dayana Mampasi. Guest starring Marcia Cross as President Claire Haas, Henry Czerny as Matthew Keyes, Aaron Diaz as Leon Velez, David Lim as Sebastian Chen, Tracy Ifeachor as Lydia Bates, and Jay Armstrong Johnson as Will Olsen. "EPICSHELTER: was written by Beth Schacter & Marisha Mukerjee and directed by Constantine "Gus" Makris.