This documentary is filmed in the capital of Mozambique, Lourenço Marques, on the day of the celebration of the integration of the province of Niassa into the territory of the colony. A train arrives at the station, the flags are hoisted, fireworks are fired. In the wide avenues, to the sound of the bands, the popular processions parade. European ladies and gentlemen wearing hats rub shoulders with Mozambicans, more numerous and rather well dressed.