From the "crooked E" Enron Company in Houston, Texas (Kenneth Lay pictured) to the floor of the New York Stock Exchange, stock buyers and sellers have witnessed scores of investigations and arrests of corporate executives.

Some of the most respected firms in the world, run by executives who were thought to be honest and hard working, have now been ruined by scandal.

Prosecutors from around the world are bringing charges of "insider trading" and "fixed books" all of which amount to a phony trading system.

We have been inside the investigations and profiling some of the men and women at the top. This program intercuts the lives of ordinary people who have lost their lifesavings with the lives of the rich and famous, now attempting to stay out of jail and protect their reputations and fortunes.