The skull of what is believed to be the largest crocodile to have ever lived was found recently in the Sahara Desert. Ten tons of crocodile approximately the size of a school bus, the mysteries behind this SUPERCROC are the focus of this NATIONAL GEOGRAPHIC search. Dr. Paul Sereno, one of the explorers who uncovered the fossil of the beast, and reptile specialist Dr. Brady Barr make a global trek to discover more about this gigantic creature who likely devoured other prehistoric animals. Computer animation is used to display what the massive crocodile looked like and how he might have survived during his time. Narrated by Sam Neill.