It's the semi-finals, and the remaining teams must draw inspiration from the office of headmaster Albus Dumbledore's office, which houses many iconic items from Harry Potter lore. And since the office is also home to Fawkes the Phoenix, hosts James and Oliver Phelps request that part of each team's 4-foot-tall showpiece should appear to be transforming from one thing to another. Plus, the tasting elements must highlight two of the four pillars of flavor: sweet, sour, spicy and salty. Harry Potter alumna Bonnie Wright joins judges Carla Hall and Jozef Youssef to decide which teams will go on to the final showdown.

The remaining teams enter the breathtaking world of Gringotts Wizarding Bank to face off in three head-to-head battles. Hosts James and Oliver Phelps ask the bakers to create 3-foot showpieces inspired by the resplendent main hall, the network of tunnels and carts, and the underground vaults. The creations must also include at least one enchanting effect and two tasting elements, plus a surprise hidden treasure! Judges Carla Hall and Jozef Youssef are joined by Harry Potter alumnus Warwick Davis to decide the winner, and one team will be sent home.

It's the final showdown in the illustrious Great Hall, and hosts James and Oliver Phelps challenge the teams to create a showpiece that reaches at least 6 feet tall and commemorates at least one event that takes place in the Great Hall. The bakers must also include two enchanting culinary effects and incorporate at least two tasting elements.

Baking meets the bubbling world of transfiguration as the five remaining teams find themselves in the Potions classroom. Inspired by Polyjuice Potion, hosts James and Oliver Phelps challenge the bakers to recreate two items from the Harry Potter world, such as a Nimbus 2001 broom or Beater's Bats, as hyperrealistic edible showpieces. The teams start to crack under the pressure as one pair uses the Devil's Snare penalty to tie up the competition. Judges Carla Hall and Jozef Youssef decide which team made the most convincing and delicious edible artifact.

Hosts James and Oliver Phelps meet the remaining six teams in front of the Knight Bus and challenge them to create showpieces inspired by magical transportation from the Harry Potter world that give the illusion of movement. Plus, the bakers are assigned classic English desserts that must be incorporated into their tasting elements. Special guest Devon Murray, who played Seamus Finnigan in the Harry Potter films, surprises the competitors and joins Judges Carla Hall and Jozef Youssef in deciding which team will be sent home.

Hosts James and Oliver Phelps welcome eight pairs of talented pastry wizards to the Great Hall, and with the help of the Sorting Hat, assign the teams into the four Hogwarts Houses. The bakers are challenged to create a massive showpiece that is inspired by their assigned house, and the teammates must collaborate to make one tasting element. Expert culinary judges Carla Hall and Jozef Youssef decide which bakers will move on to the next challenge.

Hosts James and Oliver Phelps challenge the baking teams to create supersized iconic Harry Potter artifacts that reveal something from within. For the tasting element, the teams are assigned a flavor of Bertie Bott's Every Flavor Beans, featuring baked beans, curry, marshmallow, toast and even grass. Special guest Afshan Azad, who played Padma Patil in the Harry Potter films, joins judges Carla Hall and Jozef Youssef.

For the final showdown in the illustrious Great Hall, hosts James and Oliver Phelps challenge the three baking teams to create showpieces celebrating the Goblet of Fire. The epic creations are presented to a crowd of Harry Potter superfans. Guest judges Warwick Davis, Afshan Azad and Devon Murray return to join Carla Hall and Jozef Youssef to award the trophy and crown the Wizards of Baking champions.