Hank and Laila are on the run in Strasbourg determined to beat the Pyrates in their quest for the True Cross, while "Molars," still captive on a salvage ship with White Vincent, shares some of his findings with him, including a journal written by his doppelganger, Kriegskommandant Dietrich. Back at Modern Skeptic Magazine, Arron and Rachel are convinced there's a mole within the FBI who is feeding information to The Shepherds. With so much at stake - life, death and the possible end of the world - the mole is closer than anyone realizes. And when Beck, Paige, Arron and Rachel meet up with Hank and Laila in Strasbourg, the mole is revealed. Beck, still grappling with so many unanswered questions about her husband, makes her own startling discovery that leaves everyone to wonder: "Whom can I trust?."