Having abandoned his mission to assist the skeleton crew guarding a long-abandoned S.H.I.E.L.D. facility in Appalachia, JOHN WALKER heads to Washington to confront the politicians who engineered his firing. Meanwhile, the ruthless and enigmatic new U.S.AGENT has arrived to take over Walker's mission and is willing to destroy anything and anyone who gets in his way.

Having abandoned his mission to assist the skeleton crew guarding a long-abandoned S.H.I.E.L.D. facility in Appalachia, JOHN WALKER heads to Washington to confront the politicians who engineered his firing. Meanwhile, the ruthless and enigmatic new U.S.AGENT has arrived to take over Walker's mission and is willing to destroy anything and anyone who gets in his way.