Journey through the long-vanished corners of prehistoric North America, beginning when man first entered the vast, unspoiled continent some 14,000 years ago, in this appealing BBC documentary. Witness ancient beasts, mammoths, mastodons, giant bears, and sabre-toothed cats, and see the legacies each has passed to their modern successors. Computer animation and digital effects bring to life mammoths, saber-toothed cats, giant ground sloths, short-faced bears, glyptodonts, and a plethora of smaller animals in a lush Ice Age mosaic. Discoveries from sites across America are the basis for the reconstructions. The BBC team behind "Blue Planet" and "Walking with Dinosaurs" now takes you back to an 'early America' beyond imagination. Travel back 14,000 years as humans were first entering the continent, sharing it with ancient beasts.

This powerful docu-drama tells the story of one of World War Two's last secrets - an audacious British intelligence operation to listen in on the private conversations of 10,000 German POWs without their ever knowing they were being overheard. Now dramatized - word for word from the original transcripts - the film tells how this vast operation captured not only vital military intelligence but kept secret shocking accounts of war crimes - letting the guilty walk free. (Written by Christopher Spencer)