Here is the scene where our Heroes enters Mount Everest then they get attack by the Villains in War of the Apocalypse.
(At Mount Everest everyone land)
Sonic: Where are we?
Chris Thorndyke: Mount Everest.
Sora Takenouchi: Brr. That's the tallest and the coldest mountain in the Himalayas.
Tino Tonitini: Keep a look out for the villains.
G-Merl: Yeah, they could be anywhere.
Emerl: Okay, let's go.
Max: It's so cold! (Shivers)
Ed: It is Max.