While on an airplane Frank mut bail out and comes to in a hospital with a head wound. Unsure of his whereabouts Frank must maintain his cover while trying to establish his circumstances.
Frank is assisted by the Dutch underground when he goes to the Netherlands to destroy a submarine. When a first effort fails the Germans put local citizens aboard to stop any sabotage.
A bridge important to the German defenses needs to be destroyed and Frank steps up. It means going behind enemy line and Hawthorn needs to use every trick and catch ever break to succeed.
Josette, an attractive French partisan, has been captured by the Germans. Frank must infiltrate where Josette is held and if he's unable to rescue her, he must kill her before she reveals important info under torture.
Frank Hawthorn learns of two brothers working on opposite sides of the espionage war. One has information on V1 rockets is intends to turn over to the enemy. His army officer sibling intends to stop him with Frank's aid.
Frank is tasked with tracking down Joe Heinz in the Paris environs. Joe is suspected of going over to the other side and Frank has orders to kill if true. The job is complicated by the presence of his wife Anne.
Frank Hawthorn has an assignment to persuade dancer Kyro Caro to work temporarily as an agent. But counter intelligence Fischer and Klaus make it their job to stop her endeavor by planting bombs.
A German embassy hold valuable papers and the agency knows only one capable safecracker Rafferty. But he's in prison so Frank must engineer the criminal's escape plus convince him to assist in a deadly operation.
A German officer Van Kuhl proposes turning double agent in order to free his imprisoned wife. Frank's help is part of the bargain but Van Kuhl adds an extra difficult condition during the operation.
Frank is sent to Italy to impede the Germans as the allies approach the Anzio bridge. Hawthorn gets assistance from a deaf partisan whose ability to read lips proves invaluable.
Deserters are being smuggled from to Switzerland to Germany for work in clandestine operations for the enemy. Frank goes undercover as a recruit to expose how the operation functions.
Frank head to Bergen, Norway where the submarine pens are located. The agency has learned the the enemy has knowledge of allied shipping and the information must be destroyed.
Frank joins with 3 Canadian Special Ops to blow up a deadly factory deep in Germany. First order of business is to subdue dogs guarding building then the man knowing the escape routes is killed. Frank must make the mission success.
Frank must free two imprisoned agents McGaffrey and Eilers in occupied territory. Reaching France he learns the men are hiding on a partisan farm. Getting them home requires ingenuity as the escapees are clad in their underwear.
