The Battle for Earth

The Battle For Earth is the thirty-ninth episode of both Digimon Adventure and the Digimon anime series.

Summary
With new found strength, the two mega Digimon begin taking on VenomMyotismon. Things seem to be going well until VenomMyotismon is cut open to reveal a powerful energy source, which pushes the Digimon away. But at that point, the kids' digivices shoot beams of light, binding VenomMyotismon, and giving WarGreymon a clear shot at the weakpoint - Myotismon is finally defeated. As things begin to return to normal, everyone's relieved, until the vanishing fog reveals something even stranger in the night sky. It's an upsidedown image of the familiar landmass that Izzy later identifies as the Digital World, showing that while the digidestined have been fighting Myotismon for only a few days centuries have passed in the digital world revealing that something is terribly wrong. After rescuing a plane damaged by the image in the sky, the kids decide to head back to the digital world right away to investigate and sort the problem out. Now they must face an evil that can bring forth more destruction and darkness than evan Myotismon.

Digivolutions

 * (Gomamon to Ikkakumon)
 * (Biyomon to Birdramon)
 * (Palmon to Togemon)
 * Tentomon to Kabuterimon
 * Birdramon to Garudamon

Debut Appearances

 * Salamon

Trivia

 * Though Myotismon is defeated in this episode, he is not completely destroyed yet. He later returns at the end of Season 2, the events of which he was mainly responsible for, and is destroyed in the season finale.
 * This is the only time a direct hit with MetalGarurumon's Metal Wolf Claw hasn't killed the victim. Garbagemon, Puppetmon, and Apocalymon were all killed when MetalGarurumon hit them with this attack (though for Apocalymon this was combined with WarGreymon's Terra Force). However, VenomMyotismon was thought to be dead at the time, and his body was destroyed, and he is defeated for the time being.
 * Referring to Salamon, Kari says "What are we going to do? They don't allow pets in our apartment." This is not true, as they have a cat in their apartment, Miko.
 * This episode ends the Myotismon arc and makes way for the Dark Masters arc.
 * The evil Digimon entering from the Digital World are invulnerable to all attacks and will freeze whatever they touch.
 * Cody is on the airplane that has its wing frozen by Kuwagamon.