The six remaining chefs take over two concession stands at Nationals Park in D.C., creating game snacks for the die-hard fans of the Washington Nationals major league baseball team. But ballparks aren't just serving hotdogs and peanuts any more, adding a variety of tasty and higher-end creations to the menu. Master seafood chef Rick Moonen serves as guest judge and Washington Nationals players Adam Dunn, Matt Capps, and John Lannon make guest appearances.