Planet Popcorn started as a humble little stand at a Southern California fairground. Today it's a multimillion-dollar business. The popcorn is tasty but the business model is hard to stomach. Despite generating all that cash, Planet Popcorn still can't show a profit. But serial entrepreneur Marcus Lemonis believes he can turn this business around and make Planet Popcorn a national brand. But to do it, he'll need this motley crew to follow his plan and prove they can be trusted.