Card Sharks of Vegas | Underworld, Inc.

Armed robbers can score big at the casinos, but with security being so tight, they can't score often.

But card shark Ace Face, all right, and his partner Bim have a very different approach: two-deck handheld game. Huh, yeah, that looks pretty good. Okay, he's hit the casinos literally thousands of times without them even noticing.

"Excuse me, buddy, you paid me wrong."

By keeping each of his wins small, he's made millions of dollars. The move we're practicing here is Blackjack.

"Basically, on a winning hand, I'm switching an original $10 two reds for a $55 bet."

Thanks to switching the chips, Ace Face makes $500 per move. Each score is a thrill. The release of getting the move in successfully and paid is a static.

"It is the biggest rush that I've ever felt in my life."

He gets that rush because what he's doing is seriously risky. The kind of run-ins we have: the dealer seeing the move, having someone on the table see the move and telling the casino what they saw.

And then there's the eye in the [Music] sky. If Ace Face thinks the casino is onto him, he heads for the door.

"Every casino we have an escape route, and that involves ducking into the slots and hitting the nearest exit."

Moving fast, it's all business.

"Let's go to work."