Wallace and Torode perform an astonishing stunt at the top of London's Tate Modem, while working with tricksters Barry and Stuart.
Aussie chef Torode commented: "This may be the most exciting thing I've done in my life and it's just going to be pure magic!"
Wallace added: "I'm really excited about learning how to do magic, I've always loved it - I had a magician at my wedding. Everybody loves magic and I want to learn how to do proper magic tricks."
Other celebs on this week's show include Arlene Phillips, who partners magic man Peter Firman, and I'm a Celebrity winner Phil Tufnell, who teams up with World Champion of Magic Latimer.
Magicians airs on Saturday, February 4 at 7.15pm on BBC One.
Watch a clip of this weekend's Magicians:
> Magicians Pete Firman Q&A