Clovis

On a cold morning in North America, 12,000 B.C, a young mother buries her child. Alone, she sees a new sight - a plume of dark smoke drifting over the distant glaciers. Hoping its appearance is connected to her son, she follows it. By luck, she befriends a giant sloth, and the two trek the expanse of the north, tracking the dark drifting plume.