Undercover Billionaire: Comeback City

Glenn is called to rescue a coffee shop suffering from a fatal flaw.

Glenn helps an Erie entrepreneur form a life-changing business empire.

Glenn calls on friend Cat Cora to save a 60-year-old Italian diner.

Glenn and Billy Blanks work to transform a struggling karate studio.

Glenn saves a staple of Erie manufacturing that's fallen on hard times.

Glenn takes on his biggest challenge yet: saving his own Underdog BBQ.