The Japanese have invaded New Ireland, prompting plantation owners Erskine and Haber to flee to Australia, leaving behind a woman they both love. For the opportunity to rescue the her, Erskine and Haber are coerced by Australian intelligence into kidnapping a German officer visiting the island.
Erskine and Haber are sent to Siam to be deliberately captured so they can obtain a blueprint of the Burma - Siam railway, which is being built by allied prisoners.
German saboteurs are attacking wartime installations. Erskine is sent to track down the saboteurs supply lines in the Portuguese fishing community, while Haber is interned in a prison with some captured Germans to learn their plans.
Erskine and Haber break into the notorious Changi Prison in Singapore to rescue a British bacteriologist.
A plan to blow up the Sydney Harbour Bridge is discover by Erskine and Haber.
Erskine and Haber take refuge at a trading post while evacuating a small party from New Guinea. Suspicion grows that one of the party is in league with the enemy.
Erskine and Haber guard German aeronautics expert Gen. Gustav Hochstraadt against an escape attempt.
Erskine and Haber take Gen. Hochstraadt on a direct 27 hour flight to Colombo where he is to be handed over to the British.
Erskine and Haber lead a daring raid against enemy shipping in Singapore Harbour, however it becomes obvious that one of the group is determined to sabotage the attempt.
A saboteur endangers the mission in Singapore Harbour, and Haber is faced with the decision of abandoning Erskine to certain capture, or picking Erskine up and risking the lives of all the others on the mission.
Erskine and Haber make contact with the Countess in Macau, to obtain information on Japanese troop movements.
Erskine is shot and loses the use of his legs. The doctor suspects the disability is only psychosomatic.
A top German assassin is sent to Australia to kill General MacArthur. Cato has a devious plan to protect MacArthur - without his approval.
Erskine and Haber are sent to Malaya to prevent the Tunku of the Selegore area from making a broadcast to his people instructing them to cease resisting the Japanese.
Haber and Jill Stewart are in New Guinea to sink Japanese shipping in Lae Harbour, and need help from a sole surviving, mentally unbalanced member of a lost artillery unit.
Erskine, Haber and Lt. French go to New Guinea to bring back a pacifist doctor wanted by the Americans due to his involvement with the atom bomb research.
Erskine and Haber are sent to an occupied island to assassinate a high-ranking Japanese Intelligence officer, who models his life on the 11th century Samurai.
Erskine, Haber and two Japanese soldiers spend Christmas Eve trapped in a bunker under heavy fire from Allied and Japanese artillery.
Erskine and Haber go to New Guinea to bring back Reilley, who has been waging a private war with the japanese thus jeopardising Allied coastwatchers.
Erskine and Lt. French are stranded in the desert by a German agent while escorting a captured Japanese courier from Darwin to Sydney.
German agents abduct the wife of a doctor in order to force his aid in sabotaging the supply of penicillin to Allied troops.
Erskine and Jill Stewart go to Burma to blow up a bridge the Japanese are using to advance north into China. They find a British regiment left behind as a ‘tactical rear guard’.
Erskine and Haber evacuate a Patrol Officer and two civilians from New Guinea. One of civilians, Haber had former relationship with.
Erskine and Haber are sent to rescue a politicians son from a prison camp, but the Japanese seem all to aware of the plan.
A Japanese cabinet minister wants to organise a peace treaty as he is does not think Japan can win the war. Haber, impersonating Col. Cato, is sent to a Japanese island for a meeting with the cabinet minister.
The local District Commissioner stops Erskine from using the radio to organise a retreat as he is obsessed with holding the line.
A group of entertainers who have visited many of the Allied camps are captured by the Japanese. Erskine and Haber are sent to rescue them before the Japanese can learn the locations of the camps.
An American deserter is captured by Erskine as Col. Cato suspects he is being using as a scapegoat to cover a more serious war crime.
When a number of Australian soldiers are captured, Erskine is sent to New Guinea to break them out of a holding camp before the Japanese can learn of Allied troop movements.
Cato and Lt. French are en route to an Intelligence Conference when they are captured by Germans. Cato is subject to an interrogation to obtain details of Allied troop ship movements.
A Japanese sub has been raiding northern Australia. Haber and explosives expert Owen Davies, an unreliable drunk, are sent to destroy it.
Haber and Parsons are sent to track down a counterfeit ring which appears to be centred in a small Queensland country town.
An American news correspondent jeopardised a mission when he reveals details of the operation.
Haber takes the place of a captured German agent in order to track down the suppliers of a German sub operating off the coast of Australia.
Erskine and Haber are sent to rescue a cypher expert from a Japanese prison camp, but a group of misfit soldiers also at the camp cause problems.
Erskine has an attack of malaria which forces him to seek shelter in a mission on a Japanese occupied island. The mission has an uneasy truce with the Japanese, which Erskine's presence shatters completely.
On an escape flight from Burma, Erskine and Haber share a plane with five refugees, one of whom is a secret British agent. It is discovered that someone is radioing the plane's position to the Japanese, and then shortly after one of the passengers is murdered.
Erskine is sent to a Pacific island to blow up a Japanese fuel dump, as a cover for an Allied attack on a nearby island. Upon arrival he finds British women and their families held captive by the Japanese.
Col. Cato supposedly dies of a heart attack while working at his desk, but Erskine, Haber and French find evidence that he was murdered, and they work to expose the cover-up.
Erskine accompanies two Army nurses to a medical aid station on the Kakoda Trail in New Guinea. When he discovers a Japanese platoon in the region his report is ignored by the General in command of the area, who refuses to allow the post to be evacuated.
Erskine's plane is shot down, and he is washed ashore on an isolated peninsula in Malaya. He is found by a group of Allied agents who crash-landed some months previously and are hiding out in an abandoned mansion. Erskine is wary of the group, but he must depend on them to help destroy a bridge, which is vital to Allied war efforts.
