S16, E5: After a shocking elimination, both teams must regroup and chart a new course. During The Seven Seas Seafood Challenge, the chefs will go head-to-head against a chef of their choice from the opposing team. Each pair will choose a body of water that will reveal a type of fish that they will have 30 minutes to prepare using a variety of fresh ingredients provided by Chef Ramsay. The winning team, accompanied by Ramsay himself, will enjoy an exciting meal at one of LA’s hottest restaurants, Petty Cash. Meanwhile, the losing team will stay behind for delivery day and haul in pounds of potatoes and vegetables. Later during the dinner service, Chef Ramsay invites Grammy award-winning artists guitarist Joe Perry (Aerosmith) and R&B singer Estelle.