Three Seconds to Zero Hour (1967)

“I like shady dealings,” purrs undercover superspy Yabuki en route to infiltrating a sadistic, trigger-happy gang of international jewel thieves. Gone renegade from the shadowy espionage bureau that honed his killer instincts to a razor’s edge, the implacable Yabuki teams up with fellow mercenary crime fighter Yamawaki. Together, they follow a trail of stolen gems leading from the final days of WWII to a contemporary conspiracy that reaches into the highest corridors of corporate power and nefarious international villainy.