The final five teams head to Gatlinburg, Tenn., where smoky flavors, mountain tourism, and rising tensions push the competition to a new level. Host Tyler Florence kicks things off with a "holy smokes" taste challenge, sending one member from each truck up a mountain chairlift to claim a smoky ingredient for their dish. At a tense sales rankings announcement, the teams learn that immunity is officially over, and the bottom teams face off in a smoky, grill-focused redemption battle judged by barbecue expert Rashad Jones.