Emile Brumsteede

Four inmates are ordered to enter an annual four day walking tournament. When they get over their initial annoyment, each one of them finds a way to take advantage of their time out of jail.

Petty criminal Bert Oliemans goes down for stealing jewellery from a former SS man. After his release he is constantly followed by police commissioner Van Houthem and a greedy gang leader, both out to get their hands on the stolen jewels.