Si Tous Les Gars du Monde is an entertaining tribute to the ham radio operators of the world. The story begins when a French shipping boat takes on an Arab passenger. While on the high seas, the Arab becomes seriously ill with a communicable disease that threatens the lives of everyone on board. Unable to reach the proper medical authorities, the boat sends out a desperate S.O.S., whereupon several amateur-radio enthusiasts of different nationalities spring into action.
Source : allmovie.com