Hold-up en hi-fi (Hold-up in Hi-fi)
One morning Yoko enters a bank to make a money transfer to Japan. Suddenly a loud rumbling sound shakes the block, and the police station next door receive a call that a department store in the city center has collapsed. The police under the leadership of Commissioner Lebrun scramble, leaving only one man to monitor the bank. Just then, a team of bank robbers enter the bank while an accomplice knocks out the remaining officer. Yoko fights - and defeats - two of the robbers, but a submachine gun pressed into her back forces her to relent. In the meantime, the police arrives at the store - only to see it standing intact, as it should.
When Lebrun is wondering about the rumbling sound, Yoko provides a hint about a truck which had been parked before the bank. Indeed, it contains stereo equipment and speakers, and a tape with the rumbling on it, but the speakers are too weak. But the same evening, as Yoko takes a stroll in the city, she comes upon two movie spectators discussing the effect of the stereo sound system in the theater.
This comment sparks a suspicion, and above the bank building Yoko indeed discovers the gang as they dismantle two giant speakers and stereo equipment hidden atop the roof. Although she is discovered and locked in, she manages to activate the equipment (which is still hooked up), alerting the police, and then throws a polyester audio tape off the roof, leading the police to the culprits.
Groeten

,
Paul