The final four recruits are sent back to baking school beginning with a gym class challenge where the teams face off in a relay race. Next, the bakers head to science class where they make the perfect fruit custard tart with a blow-torched meringue. Finally, it's time for art class as the recruits create 3-D animal cakes inspired by the special guests' favorite stuffed animal. The top performing bakers will earn a spot in the finale!