The Ultimate Farewell

Synopsis
Adults, children, and Digimon all over town invoke the light of their DNA charge to answer DATS' plea for help. When the hearts of all humans and digimon become one, Marcus and activate Burst Mode and are able to deal the decisive punch to destroy. King Drasil concedes defeat, acknowledging that humans and Digimon hold potential for growth as long as both stand together. The collision between both worlds stops, and all of DATS are reunited with their loved ones in celebration. Marcus and Kristy's happiness bursts out when their dad Spencer returns to them. But not all is joy, as the Digimon choose to return to help rebuild the Digital World, which the news dismays. Marcus was jealous because he doesn't want to part ways with Agumon. Each of the DATS digimon spend their last day on Earth together with their human partners. As the day of the parting comes, Marcus arrives in a rush telling Agumon he's coming to the Digital World with him with Merukimon gone so he's going to keep the peace, making Agumon very happy to always be by his boss's side. Fast forward five years later, Kristy and Keenan are now attending middle school together, Marcus's parents are living peacefully, Thomas received the Nobel Prize for curing Relena's illness, DATS has become a police station with Commander Sampson, Miki, Megumi, and Yoshi as officers, Homer continues being a fisherman and both Marcus and Agumon have become great peacemakers, breaking up fighting between rival Digimon factions in the Digital World.

Quotes
Marcus: Get ready King Drasil! Here we come! The power of humans-- Agumon: and Digimon-- Marcus and Agumon: combined!
 * —Marcus and Agumon prove why they're the ultimate team.

King Drasil: Cannot compute! Cannot compute! Fatal error! The probability of you beating me was zero percent! Fatal error!
 * —King Drasil's calculations weren't as accurate as it thought