The five remaining bakers start by making Toy Story-themed mini desserts perfect for a movie premiere party. For the Master Challenge, host Scott Conant challenges the competitors to each choose a character from Disney Pixar's Toy Story 4 to replicate in cake, and they have to include a flavor that speaks to the spirit of their character. Pastry chef Shinmin Li joins judges Jason Smith and Marcela Valladolid to eliminate one baker from the competition.
It's the last chance to get into the finale, and host Scott Conant challenges the four remaining bakers to make miniature versions of two pastry classics. In the Master Challenge, they each create a tall dessert of their choosing with at least 12 solid layers and sesame as the featured flavor. Pastry chef Nancy Silverton joins judges Jason Smith and Marcela Valladolid to decide which three bakers move on to the finale.
The pressure mounts in the chocolate-themed finale as host Scott Conant challenges the three remaining bakers to create grown-up versions of a brownie sundae. Then the Master Challenge is to make a Happy Birthday USA chocolate fireworks cake to celebrate July 4th! The elaborately decorated cake for 100 people must feature fireworks-themed chocolate and sugar decorations, three types of chocolate and two types of macarons with salty snacks as the featured ingredient. Bakery owner Elizabeth Chambers joins judges Jason Smith and Marcela Valladolid to choose the winner of the title Best Baker in America.
Ian Ziering welcomes four cake artists to the competition as Challenge celebrates the 35th anniversary of one of the most iconic film trilogies in movie history, Back to the Future. From DeLoreans to flux capacitors, the Challengers' cake creations are mind-blowing. After one Challenger is eliminated, the remaining three compete for the $10,000 prize.