S1·E36 DenTech City's Deep Freeze!
Aired November 11, 2002
Synopsis
A new air-conditioning penguin toy is introduced during a heat wave, but they're really being distributed by Grave. Soon, the penguins begin to blanket DenTech City under a sheet of ice. Lan manages to jack-in to NetCity and finds that FreezeMan is responsible for this mess. FreezeMan is defeated with the help of another new NetNavi named HeatMan.