At the instigation of the filmmakers, the young men of the Ile-aux-Coudres in the middle of the St-Lawrence River try as a memorial to their ancestors to revive the fishing of the belugas interrupted in 1924.

The people of Ile-aux-Coudres talk of their fading tradition of constructing boats to ride the seas.

From the lower St. Lawrence, a picture of whale hunting that looks more like a round-up, with a corral, whale-boys and all. In 1534, when he stopped at the island he named l'Île-aux-Coudres, Jacques Cartier saw how the Indians captured the little white beluga whales by setting a fence of saplings into off-shore mud. In the film, the islanders show that the old method still works, thanks to the trusting 'sea-pigs,' the same old tide, and a little magic.

Four years after Pour la suite du monde (1963), director Pierre Perrault asks Alexis Tremblay if he'll agree to travel with his wife Marie to the country of their ancestors, France. In a montage parallel, we follow them in France and listen to them talking to their friends about it.