Digimon: Digital Monsters

Chase Kurata - The Operation of Digimon Extermination Begins! (5x27)

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With DATS HQ destroyed and Kurata on his way to the Digital World, the DATS seek out Dr. Crier to ask him to reactivate his digital gate. When they go through, they end up running into Kurata's henchmen: Kouki, Nanami, and Ivan. When their Bio Digimon forms prove too powerful for the DATS to handle, Sampson and Kudamon appear to help out.