Drug addicts are becoming victims not only of their vice but of the lethal effects of tainted dope that is being distributed in London. Scotland Yard cannot track down the dealers and the Nemesis organisation is asked to help.

The Champions, disguised as scientists, investigate the disappearance of several key boffins working on the same top-secret experiment.

Using a fake Police Station as a hideout, a doctor programmes Nemesis agents to kill each other. When Richard is brainwashed, the Champions face their deadliest foe - each other.

When Richard Barrett infiltrates a gang of fanatical assassins, he learns that Tremayne is to be their next victim. Will he be able to stop the killers in time?

To check if a NATO vault is truly impregnable, the agents are assigned to test its security. However, the vault is programmed to kill any intruder.

Mad scientist Cranmore tries to recreate super-humans to equal the Nemesis trio. Sharron is tricked into the experiment and Cranmore awaits her rescue, hoping to ensnare Craig and Richard.

Craig and Sharron pose as a gangster and his moll in an attempt to block an escape route for criminals.

Nemesis agents Craig Sterling, Richard Barrett and Sharron Macready crash-land in Tibet after stealing bacteriological material from the Chinese. Rescued by an unknown Tibetan tribe who give them special powers, they must use them to escape the pursuing Chinese.

Craig is captured by Dr. Hallam and has a small device implanted into his ear while unconscious. When Craig re-awakens, he hears voices in his head giving him orders. Richard and Sharron must get to Craig before he is killed.

When three agents fail to return from a tropical island, the Champions are sent to investigate.

Sharron takes a few days' holiday in Cornwall and disappears. Craig and Richard's search leads them into an encounter with hooded monks, ghostly woods and the supernatural.

Richard and Sharron accompany a visiting President and his wife on a submarine journey, but an assassination attempt means that they will require all of their powers to save the President.

Voodoo magic? Or something with a logical explanation? This is what the Champions have to find out when a Nemesis scientist apparently dies of fear ... to the sinister background of throbbing Voodoo drums.

Craig Stirling awakes to find himself imprisoned, and brutally questioned..... Why is Tremayne unconcerned?

The country of El Hammi is close to revolution and can only be restored with the return of the Bey, a young man currently enjoying life in Rome, who is reluctant to return to his strife ridden homeland. Craig, Sharron and Richard abduct him and try to force him to return home but with people who are making money from the turmoil looking to kill him, it might be too late.

The Champions, after uncovering the latest plans of a neo-Nazi Group, find that have to trace an unexploded bomb before it detonates.

While investigating the murder of three students in the Austrian Alps, the Champions discover a map that leads them to a mine where a group of German soldiers were buried alive by the SS.

Richard is kidnapped from his flat and is held prisoner by a mysterious gang. Craig is sent by Tremayne to track down Richard's whereabouts.

The Champions are sent to Italy to find out why a number of Interpol agents have committed suicide.

The Champions find themselves hot on the trail of a broker when asked to investigate a man whose plans for a revolutionary aircraft have been shelved.

After stealing an atomic submarine, loaded with four nuclear weapons, a neo Nazi regime holds London hostage. The Champions are now in a race against time to stop these villains.

Craig, Richard and Sharron have to follow the path of a nuclear submarine in which all of the crew were found dead.

Craig poses as a prison inmate to find out who is attempting to free another prisoner. His subsequent escape leads him into further danger.

Three men find themselves in an atomic test area with a bomb due to go off at any time. If it does, it will devastate much of Australia. One of the men there is Richard Barrett.

A tyrannical Central American leader establishes a nuclear missile base in Antarctica. Craig and Richard get a frosty reception.