The Enemy Within

Season 1 Episode 13 - Eps 13: Sierra Maestra

Erica Shepherd can be an excellent former CIA operative, now known viewing life in a Supermax prison. Against every fiber of his being but with no where else to show, FBI Agent Will Keaton enlists Shepherd to keep track down a dangerous and elusive offender she knows too well. While Shepherd and Keaton have different motives for attracting the enemy to justice, so they both know this to catch a spy... they must consider one.