Overview:It's the semifinals of the Guy's Grocery Games: Superstars Tournament and Guy Fieri has devised two shocking shopping cart games for the five remaining celebrity chefs. First, they must search the store to discover where Guy has hidden their personal carts, only to find that they must make their best burger and fries with a bizarre ingredient that he left in each one. The winner gets an automatic pass to the finale, while the bottom four must fight for redemption by making their cheesiest dish -- after Guy's surprise twist of a four-way cart swap!