Tokusou Sentai Dekaranger vs. Abaranger is the teamup movie between Tokusou Sentai Dekaranger and Bakuryuu Sentai Abaranger.
Tokusou Sentai Dekaranger vs. Abaranger
The Dekarangers respond to a disturbance in the city. On arriving, they find the area under attack from three colored people. They fight them but they steal Machine Bull to chase a crow, which is apparently their enemy. They crash and are arrested by the Dekarangers. At Dekabase, the Dekarangers discover that their prisoners are Bakuryuu Sentai Abaranger.
Tokusou Sentai Dekaranger vs. Abaranger
Doggie learns that the crow is an Alienizer from Planet Ginjifu, Kazakh, who has been stalking the Abaranger’s friend. After Yukito heals Doggie’s bad back, all the Rangers start looking for Kazakh. Meanwhile, Abrella is introduced to Trinoid #0, Saunaginnan who revives Alien Reversia Succubus Hells and Alien Speckion Genio, but runs out of power while doing so. Ban and Ryouga meet Ryunosuke and Yatsudenwani but they are attacked by Kazakh, who steals Yatsudenwani’s objects to use as a power source for Saunaginnan.
Tokusou Sentai Dekaranger vs. Abaranger
Ban and Ryoga fight Kazakh, but Ryoga gets distracted by having to fulfill an earlier promise he made to Mai by calling her and checking on her movie audition in Hollywood. Kazakh reveals that he plans to revive Evolian’s leader, Dezumozorlya, before retreats. Tetsu, Hoji, Sen and Yukito find themselves fighting Genio, while Jasmine, Ranru and Umeko fight Succubus. Ban and Ryoga end up arguing from Ryoga’s earlier actions, allowing Kazakh to beat them. Genio and Succubus are eventually destroyed but it takes Asuka’s help to defeat Kazakh and Ban has now gained some respect for Ryoga. However, this only gives Saunaginnan more power, enough to revive several Alienizers.
Tokusou Sentai Dekaranger vs. Abaranger
As the Rangers fight, Numa O and HurricaneRed appear and attack Ban and Ryoga in more of Kazakh’s tricks. The Rangers are beaten. When all seems lost, TopGaler and Mikoto appear, having been revived as well. Along with Doggie, all twelvs rangers transform and defeat all the revived Alienizers in three separate four-man teams. Kazakh is judged guilty of his crimes, but avoids deletion, leaving Saunaginnan to be destroyed instead by the D-Bazooka and Superior Dino Bomber. Kazakh returns in a Heavy Indrustial Machine with an enlarged Saunaginnan.
Tokusou Sentai Dekaranger vs. Abaranger
Dekaranger Robo and DekaBike Robo arrive to fight them. The other Bakuryuus arrive from DinoEarth as well and join the battle. Super DekaRanger Robo and Killer AbarenOh destroy Kazakh and Saunaginnan. Later, with Saunaginnan now destroyed and its effects diminishing, Mikoto disappears back to the great beyond after saying his farewells to his friends. The remaining Rangers hold a party at DekaBase to celebrate their victory.
Tokusou Sentai Dekaranger vs. Abaranger
The Dekarangers and Abarangers celebrate their victory with a party hosted by Yatsudenwani, who irritates the Dekarangers with his singing. It is later on revealed that Doggie was one of Dino House’s regular customers. Meanwhile, the girls and Emiri enjoy a bubble bath before Yatsudenwani barges in. They chase him around the Deka Room before everyone stops to have a group photo taken.
Tokusou Sentai Dekaranger vs. Abaranger