Hanoi

Officers of the US Special Forces discover a secret camp in North Vietnam near Hanoi. The camp is guarded by Chinese soldiers and houses a group of German scientists, led by Ulric Krutch, who are working on a top secret rocket programme.A new rocket has been perfected that can deliver a payload into earth orbit. The team of scientists is waiting for Dr Erich Burgdorf to arrive from Buenos Aires with plans for a triggering device that will release a secondary component carrying a secret payload after the rocket has reached orbit.When it is discovered that none of the scientists has ever met Burgdorf, secret agent Nick Carter is sent to impersonate Burgdorf, infiltrate the camp and neutralize the rocket programme.