This is the story of the prong horn antelope, the prairie dog, the bighorn sheep, the mountain lion or cougar, the buffalo or bison, the prairie chicken, the sagegrouse, and numberless other creatures that once made the prairie their home. The setting of the story is that vast prairie of territory from the Mississippi to the Rockies, and from the Gulf of Mexico to the plains of Canada. It is a springtime when all manner of young creatures of the prairie are born. We see the birth of a baby bison and a cottontail rabbit with her litter of youngster. We witness the spring homecoming of the many marsh birds. There are scenes of their courtship antics. We show the cougar hunting food for her young. The bighorns are shown in their retreat in the inaccessible rocks of the high country bordering the prairie. There is a sequence which introduces us to the occupants of a prairie dog town; we learn of their lives and of their enemies. A cloudburst brings a time of emergency to the plain, and we see the plight of the creatures that have been caught in a flash flood. The water, however, soon disappears and a time of drought spreads over the prairie when the buffalo must trek across the great plains in search of water. As summer progresses the prairie becomes a dry tinderbox and a flash of lightning starts a prairie fire. The animals flee in confusion before it. The autumn brings the fights of the buffalo and the battles of the bighorn rams. Finally, winter arrives in the form of a blizzard bringing hardship to the prairie creatures, who must survive as best they can in their patient wait for another spring.