Third Jerry Cotton Adaption. A big shipment of Nitroglycerine, enough to make a shambles of New York, mysteriously vanishes! It's a race between agent Jerry Cotton and the underworld to see who can find the deadly explosive first. To complicate things further, the nitro must be found before a torrid heat wave causes it to blow much of the city sky high.
The first film adaptation of Jerry Cotton. FBI agents Jerry Cotton and Phil Decker are tracing a group of six murderers. Disguised as a vagabond Jerry Cotton infiltrates the gang. Kitty, the leader's girlfriend, soon becomes Jerry's most important helper. With her help, he's able to prevent a bomb's explosion in a school. The deadly attack on a rich collector he can not prevent. The gangsters flee with the loot and a hunt to the death begins ...
An elaborate bank robbery takes place and the gangsters succeed although the FBI had been warned. Jerry Cotton, who is considered accountable for this major failure, loses his badge over this. Being the man he is, Cotton doesn't let the evil-doers forget that he has unfinished business with them.
