Bouken Sentai Digiranger 02 (冒険戦隊デジレンジャー ０２, Bōken Sentai Dejirenjā Zero Tsū, translated as Adventure Squadron Digiranger 02, also commonly written as Digiranger Zero Two) is a fanfictional season of Super Sentai & a direct sequel to Bouken Sentai Digiranger. Its theme is a homage to Digimon Adventure 02.
A new generation of Digirangers, composed of three new teenagers, as well as Hikari & Takeru from the original Digiranger series, are given a new kind of Digivice known as D3, which allows them to open a gate to be transported to the Digital World through any computer. Another advantage was Armor Henshin, using a device called a Digimental, so they & their Digimon can transform in the presence of Dark Towers. They eventually stop the Digimon Kaiser, Ken Ichijouji, thanks to the sacrifice of Wormmon, Ken's partner.
After his defeat, Ken repents for his evil deeds & joins the Digirangers as they fight two evil Digimon named Archnemon & Mummymon. Archnemon has a unique power to turn the Dark Towers into super-strong, artificial Digimon under her control. To fight this new threat, the gang learns of the Jogres process, enabling their Digimon to fuse with each other in pairs for more power. Eventually, when the battle was brought to the Real World, the true mastermind, Yukio Oikawa, makes himself known. This man extracts the Dark Seed from inside Ken & implants it into other children who wish for the greatness that the old, evil Ken had. Those seed develop into flowers that harvest the infected children's energy. Eventually, the Digirangers confront Oikawa, only to learn he's an extreme loner whose only friend in the world was Hiroki Hida, Iori's father. Hiroki & Oikawa used to play old video games when they were young, eventually becoming obsessed with the Digital World & dreaming of going there one day, but Hiroki dies before they could go together, causing Oikawa great sadness. In the end, an entity springs from this man's body, none other than the real mastermind, Vamdemon from the first Digiranger season, now reborn as BelialVamdemon.
Unlike the original Digiranger, which was set in the Digital World except for a temporary return to the Real World, Digiranger 02 characters shuttle back & forth between the two worlds almost every episode.
This season ended with the help of Digirangers from all over the world, using the light that existed inside each one of them & their wishes to return the Digital World to a peaceful world again. Oikawa, who is too weak to enter the Digital World, becomes its guardian as he passes away. After peace is restored, the boundary between the Digital & the Real World is broken down, giving every human their very own Digimon companion.
