When speedway superstar Bert Webber asks his old friend Reg Calloway for help, Reg is reluctant to get involved.
Webber's brother-in-law is dead, seemingly the victim of a simple road traffic accident, but if the dead man was in a crash just north of London why was there a flyer for a clip-joint in Berlin and a ticket for the city's U-Bahn tucked in his pocket?
Ten years in the military police and six in the Intelligence Corps have taught Calloway that things are not always as they seem, and with Webber happy to pay him a pretty penny to investigate further, Reg puts aside his initial misgivings and determines to find the truth, wherever it lies.
So begins a high-speed, high-octane thriller which propels Calloway through a post-war world of female wrestlers, wall-of-death riders, Berlin gangsters and the shadowy spy-masters he thought he'd escaped forever.