The last of eight films exploring America and its botanical history.

How did the enormous forces of nature prepare North America to be the bread basket of the world?
David Bellamy pieces together the story as he takes breakfast at Tiffany's, canoes in the Great Lakes, and learns something from the early Indians. The first plough breaks the prairie plains, and the golden harvests multiply - but so do the problems: dust bowls, then disaster in the guise of an old friend.
Can the New World's most precious resource be preserved to feed the world?
(Subtitles on Ceefax page 170)