Digimon Data Squad S01 E05 Digital World, Here We Come!

Marcus and Thomas, together with their Digimon partners, enter the Digital World to capture Drimogemon. They fall into a large underground labyrinth, Drimogemon's home, and escape seems impossible. Thanks to Marcus' unconventional methods, they manage to leave the labyrinth on Drimogemon's back, but then, the wild Digimon evolves to Digmon.