Peninsula Valdes juts into the South Atlantic off Argentina, and every July it fills with southern right whales that come to give birth and nurse their calves in its sheltered bays. The film follows the whales through the season, from the calm approach shots of mothers and calves to the breach-and-splash displays naturalists travel here to see, until November, when the whales head south again chasing krill. On the peninsula's beaches, elephant seals gather for the only continental breeding colony of their kind anywhere in the world, and the camera stays close through the mating and pupping season. Away from the shoreline, the film turns to the arid Patagonian steppe, following guanaco herds and the mara, a long-legged rodent that looks more like a hare than anything else in South America. The footage moves between wide landscape shots of the peninsula's cliffs and beaches and close, patient wildlife observation, building a picture of one small stretch of coast supporting several very different breeding cycles at once.