After a day of fishing with Gammamon, Hiro is suddenly able to see the future. He predicts accidents that Kotaro, Gammamon, and those around him are about to encounter. However, each time he does, he gets an excruciating headache.
When Hiro begins to grow horns, Ruli, Angoramon, Kiyoshiro, and Jellymon suspect a Digimon is involved. Ruli's investigation found that others have been having the same symptoms. Angoramon notices that Hiro has a Fujitsumon attached to him. He told them that Fujitsumon have a symbiotic relationship to Octmon, and they have the ability to predict danger.
Thanks to Kiyoshiro's gaming savvy, the group are able to lure Octmon using the super ultra legendary rare item every player wants. Two Octmon arrive and start fighting. Kiyoshiro must use his digital watch to protect the dorm.
Jellymon breaks up their fight and asks what is going on. They learn that the Fujitsumon group and one of the Octmon had a fight, which resulted in the Fujitsumon detaching themselves from Octmon and attaching to humans instead.
To save Hiro, the Fujitsumon's leader is needed, but they parted ways at the fishing pond. It's urgent to find him as Hiro's arm suddenly transformed into an octopus-type arm! The group located the leader, who has attached itself to Espimon.
Gammamon, Angoramon, and Jellymon hunt down Espimon, but he is being controlled. Thankfully, Gammamon gets through to Espimon. Espimon orders the Fujitsumon to "get out!" They return to Octmon who apologizes. The Fujitsumon on Hiro's head detaches as well.
Shortly after Hiro is back to normal, he, Gammamon, and Espimon return to the fishing pond.