In Redondo Beach, Calif., special guest food truck andall-star season runner-up Seoul Sausage challenges the teams tocraft a game-changing box lunch and sell it on the boardwalk.Sales improve for most of the food trucks, with one truckselling more than they've sold in the entire race. But one teamstruggles with sales -- and with each other, forcing TylerFlorence to pay them a visit and lead a makeshift therapysession.