In the wake of the fast-money 80's, America's top six accounting firms are in a state of upheaval that seriously threatens their role as watchdogs of the public interest. Marc Stevens, author of the bestselling "The Big Eight," investigates the scandalous decline in professional standards that has resulted in a rash of audit failures and, perhaps most shocking, the inability of the Big Six firms to uphold the public trust in the S&L crisis.