CNBC's popular hit series, "The Profit" returns for a fourth season. Each one-hour episode of "The Profit" follows serial entrepreneur and investor Marcus Lemonis, who puts his own money on the line to help save and grow struggling businesses across the country. Since "The Profit" first premiered, Lemonis has invested more than $35 million of his own money in the companies featured on the series. In each episode, Lemonis makes an offer that's impossible to refuse; his cash for a piece of the business and a percentage of the profits. And once inside these companies, he'll do almost anything to save the business and make himself a profit; even if it means firing the president, promoting the secretary or doing the work himself.