Ep. 4: The New Team's First Outing! Pursuit Drimogemon!

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Masaru and Touma are ordered to work together, but they aren't able to do so, which becomes clear during the pursuit of a group of Numemon. Suddenly a Drimogemon appears and helps two burglars steal money. Masaru and Touma try to capture him, but because of their quarreling, he escapes to the Digital World. To capture him, Touma decides to follow him, even against the orders of Commander Satsuma. (Source: Wikipedia)