Summary: In a world where the adventures of the DigiDestined are nothing but a television show, a young boy named Takato finds a strange, blue card in his pile of Digimon playing cards. After scanning it, his card reader turns into an actual digivice! That night, Takato scans images and information about Guilmon, the digimon he made up, into the digivice, creating a digi-egg within it. In his dreams, Takato witnesses a battle between Lynxmon and another digimon named Renamon, who is the partner of a young girl. The next day, the digi-egg hatches into Guilmon, and Takato uses his digivice to track him. However, a group of scientists is also monitoring the digimon.

Summary: A Goblimon escapes into the Real World and is then confronted by Rika and Renamon. However, Calumon, a small, innocent digimon that also escaped from the Digital World, accidentally causes Goblimon to digivolve into Fugamon! Guilmon, after sensing the new digimon, suddenly becomes ferocious, but he returns to normal after Fugamon is destroyed. The next day, Guilmon follows his tamer to school, where Takato discovers yet another digimon and tamer.

Summary: Takato and Guilmon are confronted by Rika and Renamon, who believe that digimon only exist to fight. Guilmon's ferocious side once again returns, but Takato manages to snap him out of it. When Renamon tries to take advantage of the distracted Guilmon, Henry and Terriermon appear and stop the battle. However, Takato and Guilmon later run into Rika and Renamon again, and the battle continues. Henry and Terriermon also show up, and when Terriermon accidentally steps into Renamon's line of fire, he digivolves into Gargomon! However, he is unable to control his new power and begins attacking everything in sight!

Summary: As Henry waits for Gargomon to revert back to Terriermon, Takato and Rika ponder about the digivolutions of their own digimon. The next day, Takato, Guilmon, Henry, and Terriermon are surrounded in what Henry refers to as a Digital Field, and Gorillamon is inside, waiting for them. Flashbacks then reveal the history between Terriermon and Gorillamon, as well as how Henry brought Terriermon into the Real World.

Summary: Takato and Guilmon run into the playful Calumon, who is the unknown cause of the digivolutions of Fugamon and Gargomon, and they search for someone to be his tamer. For fun that night, Calumon gets Guilmon to draw a design resembling the one on Calumon's head on the school soccer field, but it creates a Digital Field! Takato, Henry, and Terriermon then enter the field and find Vilemon attacking the pair.

Summary: Rika, who is now obsessed with getting Renamon to digivolve, reminisces about how she first became a tamer. She and Renamon later battle Dokugumon, and when Renamon is badly injured, Rika's love allows her to digivolve into Kyubimon.

Summary: A digital anomaly causes Guilmon to vanish into thin air. As Takato, Rika, and Henry enter the energy field that took him, the group of scientists that has been monitoring the digimon prepares to erase it.