Undercover Boss

SN 10 | EP 4 | Clean Harbors

When Alan S. McKim, Chairman and CEO of Clean Harbors, tackles some dirty jobs to see if his company needs cleaning up, he's faced with the challenge of working in a confined space while treating the inside of a dirty tank at a re-refinery that processes waste oil. (TV-PG L)

Available: CBS, iTunes Store

Undercover Boss