WARNING: The following contains spoilers for Season 1, Episode 17 of Digimon Adventure 2020, "The Battle in Tokyo Against Orochimon," now streaming on Crunchyroll.
In the last episode of the Digimon reboot series, the creepy trickster, Eyesmon, lured Tai, Izzy and Mimi into a cruel trap -- an artificial version of Tokyo in the Digital World. In doing so, the Champion-level Digimon also revealed that it is to blame for the real Japanese capital's days-long electrical outage, as absorbing and replicating the city's data has played havoc with its power supply.
It takes the entire DigiDestined group reuniting, after several episodes apart, to launch a decent counter-attack. But even then, Eyesmon's replication abilities make it too hard for the gang's attacks to stay on target. Eventually, all of their Digimon at the Ultimate-level forces the many-eyed monster to back down... only to unveil its own Ultimate form: an eight-headed serpent called Orochimon. In the most recent episode, "The Battle in Tokyo Against Orochimon," the DigiDestined's battle against this slippery foe reaches its conclusion, and in the midst of it all, we get an exciting tease about two upcoming additions to the DigiDestined's roster.
With the skyscrapers of fake Tokyo surrounding them, and Orochimon's hydra body above, the episode bears more than a passing similarity to a kaiju battle from a tokusatsu production. Like Godzilla's archnemesis, King Ghidorah, Orochimon's multiple heads seem to be independent of one another; each sporting a slightly different design and moving separately to block the DigiDestined's Ultimate-level partners from getting too close to its glaring weakness: the black head at the center of the nest. It's clearly the creature's real body.
Unfortunately, the kids don't realize this until after they've won, continuously falling for the serpent's fake appendages instead. Rather than devise a strategy, the group instead relies on the bonds they've been nurturing with their Digimon, resolving to overwhelm Orochimon and simply blast through its defenses until it has nothing left to hide behind. In fairness, this plan works: as their Digivices glow brighter, so too do the power of their Digimon's attacks, until one final push from MetalGreymon destroys Orochimon for good.
But while all this is happening, T.K. and Kari, Tai and Matt's younger siblings, respectively, are watching on from the real world. As Tokyo's power cut continues to cause panic, T.K. -- all alone -- yearns to be with Matt, while Kari is separated from her mother as commuters rush to escape the city via train. Looking at television screens nearby, they're mysteriously granted a window onto their brothers' own struggles, hinting that they'll be reunited with Matt and Tai sooner than they think.
In the original series, T.K. was already part of the group when they were sucked into the Digital World, with Kari joining later on. If the reboot's ending credits are anything to go by -- with T.K. appearing before Kari does -- history may well repeat itself here.