Return to Highton View Terrace Digimon: Digital Monsters : Season 1 Episode 29

The DigiDestined find themselves back at camp, learning they were only gone for a few minutes. They proceed to head towards Highton View Terrace to try to find the eighth child. There, a battle between Garudamon and Mammothmon helps them recall them witnessing a battle four years ago between a Greymon and a Parrotmon. They surmise that the eighth child must have also seen the fight.