When Taichi and others are rescued and brought back to shore by Gomamon, who reveals that he is the partner of Joe Kido, another chosen one. Joe tells Gomamon to join Taichi's group while he stays behind to study and wait for help. Taichi and the others form a plan to lure Gesomon to shore using Gomamon as bait. The plan succeeds but Gomamon is injured, and as Gesomon holds its own against Greymon and Togemon, Joe realizes that Gomamon has always been there for him during his time in the Digital World, triggering Gomamon's evolution into Ikkakumon.
Gomamon and otherarrive at a rest area for traveling Digimon and come across a restaurant which is serving hamburgers offered for free by Burgamon. While they are relaxing, Joe points out to the rest of the group that the other Digimon customers don't eat fries which Gomamon explains they are likely hard for a Digimon to grab. Jyagamon, who start attacking the whole surrounding area, Gomamon digivolve to Ikkakumon in order to stop him.