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 and R&B singer Estelle.

The remaining contestants are tasked with cooking their own interpretation of a southern staple, and are judged by Chef Ramsay and surprise guest judge Chris Hastings, the executive chef of Hot and Hot Fish Club. The winners will enjoy a Southern-themed reward, while the losing team must prepare for both team's dinner service by grinding pieces of corn and shelling shrimp. The dinner service begins with determination to impress Chef Ramsay and the VIP Guests: NBA player J.J Redick, recording artist Blake Lewis, actress Mircea Monroe and entrepreneur and reality TV star Adrienne Maloof. Stress rises within the teams, and Ramsay makes a shocking decision that leaves the chefs speechless.