After agreeing to help London remove shoes from her submarine, Zack, London, Maya, and Woody are all trapped in London's shoe submarine with only enough air for thirty minutes. Meanwhile, Marcus helps Cody prepare to play chess against Sasha Matryoshka, a beautiful Russian junior champion.
- Debby Ryan as Bailey Pickett
- Matthew Timmons as Woody Fink
- Erin Cardillo as Emma Tutweiller
- Zoey Deutch as Maya
- Cody Kennedy as Mischa
- Although listed in the credits as Mischa, the character was called "Sasha Matryoshka" during the episode.