The battle on the gridiron may be rough when the San Francisco 49ers take on their neighbors, the Oakland Raiders, but it's nothing compared to the action going on outside the stadium. Guy Fieri has thrown down the gauntlet, searching for the best tailgate teams in the country. In this round, we're in Guy's own hometown, as the top tailgate team from San Fran heads across the bay to take on the top tailgate team from Oakland in a one-hour competition to see who has the most killer grub in the game!