After the Battle of the Apron concludes, the Top 20 home cooks in America meet the first guest judge of the season - culinary icon Wolfgang Puck, who will introduce the season's first Mystery Box Challenge. Each contestant will have 60 minutes to create a dish of their choice that features one of the world's most fundamental ingredients - potatoes! The winner of the Mystery Box Challenge is rewarded with a significant decision going into the season's first elimination challenge, during which they will have to replicate one of Chef Ramsay's signature dishes in less than 60 minutes.

After a dramatic elimination, the remaining 17 home cooks are greeted by Chef Ramsay and Tosi, as well as special guests Season Six winner Claudia Sandoval and guest culinary judge Aarón Sánchez, as they reveal the next mystery box challenge. Each contestant will have 60 minutes to create his/her own unique dish using a number of Sandoval's favorite ingredients. The winner of the challenge will not only be safe from the next elimination round, but will also help in deciding the fate of three other contestants in the elimination. Find out who is saved and who survives elimination.