Turner and Maggie seek refuge with Ludlow, a former soldier involved in the program, who discloses that Griffin has been exploited by military authorities to carry out political assassinations. Griffin tracks down Ludlow and attacks him, and Ludlow sacrifices himself to save Turner and Maggie. In a climactic showdown at a train station, Griffin abducts Maggie’s sister, prompting a confrontation with Turner, who employs invisibility to engage Griffin in combat. Turner gains the upper hand, administering a lethal poison to Griffin during the struggle. With Griffin defeated, Maggie and Turner emerge victorious but emotionally scarred from their harrowing ordeal.