Formula one racing driver Jimbo Harris is obsessed with breaking the lap record to the extent that whilst he has a clear lead in his race he accelerates and crashes, injuring himself. Dr. Corder has to discover the reason for this obsession, hopefully in time for Jimbo to drive in the Monaco Grand Prix and draws a connection with Jimbo's time serving in the Korean war. However, against the doctor's advice Jimbo breaks off treatment to claim that all-time record at Monaco.