Iron Vegiemon Digimon: Digital Monsters : Season 2 Episode 4

Gabumon is captured and tortured by an enslaved RedVegiemon for helping the Gazimon rebel. With Matt Ishida, the DigiDestined rescue Gabumon and inadvertently destroy a Control Spire, allowing Gabumon to Digivolve again and freeing the Digimon Emperor's slaves.