Bill Massa, President and CEO of Synagro, the nation's largest waste water treatment corporation, goes undercover in the series' dirtiest mission to date where he finds himself cleaning a tank of 27-year-old sludge and also discovers a flaw that goes against one of the company's goals.

Shelly Sun, the co-founder and CEO of BrightStar Care, one of the nation's fastest-growing providers of private healthcare, travels to the frontlines of her company, where she becomes overwhelmed while assisting a caregiver who's overseeing four toddlers. Also, when the boss' husband, her co-founding partner, joins her undercover, he discovers the game of Bingo is nothing to play around with.