The Great Food Truck Race: Season 12, Episode 4

12 - 4: Viva Las Food Trucks!

Tyler Florence meets up with the four remaining food trucks in Las Vegas, and Sin City proves to be the toughest sell yet. The teams have to get creative on the casino floor when they spin the "protein roulette" wheel, and they put their service skills to the test for an in-suite dining challenge on the strip.