Jose Mas, CEO of MasTec, one of the largest builders of telecommunication and energy systems in North America, receives an explosive surprise while heading down a manhole. Also, the Boss is shocked when he discovers that one employee feels rejected by a local community because of her job, on the third season finale of UNDERCOVER BOSS, Friday, May 11 (8:00-9:00 PM, ET/PT) on the CBS Television Network.