The group spend the night thinking about what they will do. Should they go to Server and face unknown Digimon? or Stay on File Island? The group discuss it and they come to a conclusion. If they stayed, there will be no way to get back home. If they go to Server they might find a way to go home. But could it be a trick? The group decides to head to Server. There they will find a way home, hopefully.
The group arrive on at beach, they decide to build a raft. Everyone helps, but the progress is just too slow. "Need some help?" A voice asks. The kids see Leomon, he came and brought some of extra hands. Through their exploration around the island, they saw a vast variety of Digimon and those Digimon they befriended all came to help them build a raft. Meramon, Frigimon, the Yokomons, etc. They all set to work to build the raft, felling the trees, getting rid of the branches and tying the felled trees together. In no time the raft was finished. The Island Digimon send the raft flying into the water.
At sea, they bob up and down and slowly making their way to Server. Joe is already getting sea sick. TK holds his egg close and a crack develops. TK looks closely. The Digi Egg is hatching! The top part of the egg breaks off and reveals Poyomon. Poyomon is a jelly-like Digimon with few words. The group realise that they all stopped, but they're not at Server yet. They see something...something HUGE under their raft. "It's Whamon, a gigantic Digimon that lives out in the ocean," Tentomon explains.
Whamon looks very much like a whale but half machine. Whamon raises his gigantic tail and splashes it down, sending violent waves toward the group. Whamon seems to be missing...or not...Whamon with his jaws open swim quickly toward the group. He swallows the whole group whole! The raft slides down a long hollow metallic tube and end up in a room with a liquid underneath them. Izzy cautions everyone not to touch it, it's stomach acid! Slowly the stomach acid is burning the raft and more is being produced. They see a black gear! It embedded itself inside Whamon's stomach. Tai ordered Agumon to destroy it, "Pepper Breath!" The black gear disinagrates. A rumbling is felt and the stomach shakes. The raft is being pushed higher and through Whamon's breathing hole. The group looks around, they are all floating in the ocean; their raft destroyed and in pieces. Whamon surfaces and thanks the kids for helping him feel better. He offers the kids a ride on his back to Server, after Tai tells him where they are going.
On top of Whamon, the kids feel and see the difference, riding on Whamon is much faster and steadier. Joe isn't sea sick any more. They talk about Jeni's words and directions to them. Whamon over hears and say that Devimon went underground and hid something. The group wants to go, they go into Whamon's mouth, while Whamon swims undergound. Whamon brought them to a cave, they go out. Whamon explains he needs a rest and swims away to look for food. The group look around them, a hollow, rocky cave, but about a few yards in front of them a convenience store is there. They all go to it, the ground shakes and reveals a purple and white furred Digimon with a drilling horn. It says that Devimon told him, no one can cross. Tentomon explains that this Digimon lives underground and drills holes. "Gomamon digi-volve to...IKKAKUMON!" They lock horns, everyone runs into the convenience store. Tentomon decides to help Ikkakumon out, "Tentomon digi-volve to...KABUTERIMON!" Gabumon helps out too, "Gabumon digi-volve to...GARURUMON!" The three Digimon battle it out and manage to loacte a black gear. They destroy it commenting that black gear is the last of them.
TK is looking for Poyomon in the store and finds him. TK reaches out and sees a small treasue chest. He tells the others, "look what Poyomon found." They open the chest and the tags are all there. They conclude that the crests all must be on Server. Whamon returns and takes them back up to the surface. He explains to get to Server, it will take five days minimum. The group heads out to the sunlight, wearing their newly founded tags around their necks. Next stop, SERVER!