Craig dons the disguise of a wall of death motorcycle rider to infiltrate a gang responsible for a series of audacious robberies. His ability to ride the machines leads to him being offered the role of lookout on the gang's next job.
The Prime Minister of a small eastern European country is assassinated and an Innocent American is being framed for it. Craig, under cover as a salesman, finds that a cabinet minister is plotting a communist takeover.
Recruited into the GS team on a special mission to ensure the safety of a visiting president. Det. Insp. Brett's methods raise a few eyebrows - none higher than than Craig's, who asks if the newcomer is all that he seems.
In Sweden to receive a Nobel Prize for physics, an American scientist is drugged and concealed in a car entered in a cross-Europe endurance race. The squad has to find them before it takes a turn into communist territory.