The topic of the film is an operations unit of the French Resistance. The film covers a wide range of activities having an almost documentary feel to it: operatives attack targets, including murdering an informer, spring their comrades from jail, and in turn kill those comrades when they break. There is nothing sentimental about the film and it is a specific against the 'Allo 'Allo view of the war. The storytelling is well paced, including some actions that lead nowhere. This must have been a very powerful film when it was first shown, and it retains much of its power today, aided by the presence of Lino Ventura as Gerbier.