Examines the science of glaciers and looks at some of the discoveries of the past that have been made as the ice masses move and melt, including the preserved frozen remains of Otzi, the oldest human mummy ever found in ice, believed to be at least 5,300 years old.

Iceman of the Alps -- Grinding, gliding glaciers -- Dragons in the ice -- Frozen children of the Andes -- The mystery of Mallory -- Another man from a glacier -- Saving the past.