Carter is recuperating at his private lodge in Indiana when he is summoned by AXE chief, David Hawk, to uncover a traitor within the organization.
Hawk reveals that Raymond Lee Bennett – a minor civil servant working in AXE – has apparently murdered his wife and disappeared only a few weeks after his retirement.
Further background checks reveals that Bennett has a photographic memory and is capable of recalling every classified document he has had access to in the last 30 years.
AXE fears that Russian and Chinese intelligence agencies also intend to capture Bennett to exploit his knowledge.
Carter traces their steps over the rooftops of buildings adjacent to the hotel and discovers the body of his German AXE contact.
Carter picks up the trail again in Pusan where a disguised Bennett and Yellow Widow intend to take the train to Seoul.
Carter steals some weapons and rigs booby traps to surprise the bandits when they return from besieging the train.
Carter sets the camp on fire which attracts the attention of Jimmy Kim and Pok who have been searching the environs of the train for him in a spotter plane.