The teams work to wow the judges with confections that bring the element of surprise.

The teams wax nostalgic with extra-sweet treats inspired by popular candies.

The bakers rush to make winning desserts inspired by the judges' favorite holidays.

An ocean theme sends bakers into the deep to make seascapes, aquatic creatures and salty-sweet flavors.

Geeky science-themed challenges get the creative juices flowing -- along with oozy zombie 'blood.'

The contestants serve up sweets with summery flavors that evoke the great outdoors.

Fashion-forward challenges force the frazzled contestants to think outside the box.

The baking teams pour buzz-worthy ingredients like coffee, honey and alcohol into amazing edible creations.