Crew members of a French fishing ship in the North Sea fall ill one by one, poisoned by rotten meat. They can only survive by getting serum within the following hours. Joint actions of rescuers from different countries commence.

While fishing in the North Sea, eleven out of twelve crew members of the Lutèce, a fishing boat from Concarneau, get poisoning after having eaten rotten ham. The only one unscathed is Mohammed who, as a Muslim, does not eat pork. The situation is serious for the eleven victims: if they do not get a serum quickly, they will all die. Luckily, Captain Le Guellec sends an S.O.S. which is picked up far away in Togo and then in Paris by Jean-Louis, a young radio amateur. A chain of solidarity is created in the hours that follow.—Guy Bellinger