In the season finale, the final two food truck teams return to the competition's starting point for an ultimate face-off in the City of Angels. Tyler Florence brings the trucks to an upscale winery, and they're forced to pull out all the stops, knowing that one team will have to close its doors forever and one will walk away with the grand prize of $50,000.

In Santa Barbara, Calif., Tyler Florence puts the final three food truck teams to the test on a sprawling avocado farm, where they race to pick and pit 50 avocados. Team morale is tested when they're challenged to one-up each other's avocado dishes, and one team's family makes a surprise visit. The final two teams are revealed.

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.

Things are getting hot in Palm Springs, Calif., where the food truck teams have to conquer the extreme heat as well as their fears to tackle an unprecedented aerial challenge from Tyler Florence. A mystery ingredient enhances all the teams' dishes, and the locals show the trucks big love. After two days of selling, however, one food truck will have to shut its doors forever.

The six remaining teams roll into San Diego, where Tyler Florence makes them pair up for a taxing team challenge involving a slimy sea creature. At elimination, one team has a shocking announcement that changes the rest of the competition.

Tyler Florence kicks off the race in Los Angeles, the food truck capital of the world. Seven teams of food truck owners are challenged to make and sell luxe versions of traditional food truck fare. From private plane hors d'oeuvres to champagne-infused main dishes, the teams have to elevate their skills to the next level to win a shot at the $50,000 prize.