The whole Digimon Island is seperated and flowing away in the ocean. In the middle is an small island. From far away it looks like a single huge mountain. It practically is. This mountain is Mt. Infinity. On top of Mt. Infinity is a broken down building, inside hideous stone figures decorate the interior. Devamon. It is his 'castle' He looks across at all the drifting islands and mentions the Digi-Destined's will "meet their doom."
On a floating block of ice, Tai (in his underwear) is with Agumon. They are both cold and hungry, they wish they were on solid ground. Their wish just came true. They see a huge glacier and crash into it, both of them flying into the snow. Tai is freezing and see Agumon's two feet sticking out of the snow. Tai pulls out Agumon and finds his clothes all frozen in the snow. Agumon helps out with his pepper breath. They walk along and find mailboxes. Tai wishes he can mail himself home. But the only way to do that is to defeat Devamon. Tai sees through his telescope and notices they are drifting farther away from Mt. Infinity. A rumbling is heard and they see Frigimon. Frigimon is a friendly digimon, Agumon explains. Frigimon looks menacingly at the two and..."SUBZERO ICE PUNCH!" The two luckily dodges, but Frigimon freezes up one of the mailboxes. They see a black gear attached to Frigimon on his back. "Pepper Breath-ha!" Frigimon blocks it. Tai comments on if Frigimon touches them, they'll be ice cubes. Agumon has no strength to digi-volve. They run to a dead end. "Going somewhere? Ha ha ha, " Frigimon cries. Agumon has an idea. If Tai can throw him up and onto Frigimon's back, he can destroy the Black Gear. Tai tries, but "Tubbymon" sure is heavy. They belly slide forward to dodge Frigimon. Tai has an idea. He wants to show Agumon why he was named Captain of the Soccer team. He tells Agumon to roll up in a ball. Tai then kicks Agumon up and onto Frigimon's back. Agumon holds on for dear life and..."Pepper Breath!" He destroys the Black Gear. Frigimon returns to normal.
Tai asks Frigimon if he's seen anybody like him. Frigimon says he saw a Gabumon and a boy on a bed falling into the island right across from their glacier. How will they get there? Frigimon feels bad for attacking the two, so to make it up he offers to take them across to the other island using his subzero ice punch to form a bridge. He carries the two on his shoulder.
On the other island, a blizzard is raging. Matt and Gabumon are there. Matt is yelling out TK's name, he wants to find his little brother, but he doesn't look well. He's coughing hard. Gabumon suggests that they rest. Matt doesn't listen to him. They find a cave. Matt runs in hoping to find TK. No one is there. Gabumon builds a fire and tells Matt to warm up. Matt won't listen. Gabumon offers to find TK, he goes and looks for TK. Matt sits by the fire and thinks. 'It isn't right. He's my little brother, I should go look for him,' Matt runs out. Gabumon doesn't have any luck and says how Matt will be so disappointed. On the way he finds Matt all cold in the snow and unconsious. Gabumon quickly brings Matt back to the cave. Gabumon sees how Matt is shivering, Gabumon takes off his fur so that Matt can be warm and so that Matt can make it through the night. Gabumon is really shy about taking off his fur. The screen doesn't show Gabumon, but it shows his shadow. Outside, unknown to them is a snow shadowy figure eyeing them, outside of the cave.
Frigimon and the gang made it through the night. They are on the other island. They predict that Matt and Gabumon are somewhere in the snowy region. "Sure let's hike, after that we can hike some more and after that let's go hiking again," Tai sarcastically says. The group calls out to Matt and Gabumon. In the cave, Matt wakes up. Gabumon quickly takes the fur and hides behind a rock. "Gabumon, you took off your fur, for me?" Matt asks. Gabumon comes out of the rock with fur intact and nods. Matt is impressed by his friend. "MATT!" It's Tai's voice! They run out and see their friends. They run to them, they are all glad to see each other. Gabumon gives a huge sneeze, he also has a running nose. Tai jokes that Gabumon has the cold, isn't he the one with the fur? Matt shoves Tai and tells him to stop making fun of Gabumon. They cool down, and Frigimon goes off to find some medicine for the cold and some food. Tai and Matt debate what they should do now. Matt wants to find the others. But Tai wants to focus on the real deal, to defeat Devamon. They have a huge argument and they start to fight. Matt punches Tai and they start to roll down a hill. They stop right at the edge of the hill. Their Digimon try to calm them down but they won't listen. Matt confesses. "It's TK, I'm worried about him. He's all alone on a strange island." Matt has tears in his eyes, he looks at Tai. Tai relaxes and understands. "So that's it." The edge of the hill collapses and they fall. Tai grabs a hold on to Matt's hand and with his other hand, Tai holds onto a tree root. Their Digimon try to safely climb down, but they can't. They don't have any strength. "If only I can digi-volve into Garurumon," Gabumon says.
A Digimon shows up, looks like a Sasquatch. It's Mojamon, it's a peace loving Mountain digimon. It doesn't like fighting. But what is that he's holding? An icicle?! Mojamon lunges at the group with his icicle and breaks off the whole cliff. The group fall. They all bounce off a round white head. It's Frigimon. "It's raining kids and digimon again. I'm gonna have to bring an umbrella." Frigimon says. He gives Gabumon some sort of green grass. He says it's an ancient cold remedy. Gabumon stuffs it all into his mouth, his eyes pop out with surprise. It's disgusting! He makes a face. Frigimon gives the others some food. The food is good and tasty. Mojamon jumps down. Frigimon tries to protect the group and battles with Mojamon. Frigimon manages to slam Mojamon into the side of a cliff. Exposing numerous black gears. But in the end Mojamon knocks Frigimon down. Mojamon uses "Boomerang Bone!" and he throws a boomerang shaped bone at the group. They duck and dodge it. "Nice trick Mojamon, now watch ours!" Tai says.
Gabumon digi-volve to...GARURUMON!!! Agumon digi-volve to...GREYMON!!! Frigimon holds onto to Mojamon, they see a black gear in his chest. Agumon uses his Nova Blast and blastes away the Black Gear. Garurumon uses his Growling Blaster to destroy the exposed black gears. Mojamon returns to his peaceful self. "Whoa! I feel like I've been run over by a monochromon!" They explain that the black gear was controlling him. Matt points out they still have to find the others. The gears all crackle with electricity and are all repaired! This time they run the opposite way, back to Infinity Mountain and Devamon. The two don't fight, they have a mutual understanding. "I know now that TK will be alright. He has Patamon, and Patamon will keep him safe." He knows that is they trust each other, they will be alright.