Ten years after the defeat of Agent Abrella, the legendary Dekaranger squad has disbanded and gone their separate ways. Banban Akaza has joined Space Sheriff Gavan, while Jasmine, Umeko, Hoji, and Sen-chan have retired from active duty. However, a sudden crisis shatters their peaceful lives: their former mentor and commander, Doggie Kruger, is framed for severe crimes, including conspiring with the alien syndicate Kordonian and leaking classified Space Police intel. Shocked and devastated, the former members realize they must reunite to uncover the truth and clear their beloved chief’s name.As the detectives investigate, they discover that Doggie's apparent betrayal is tied to a tragic incident from two years prior. During a sensitive hostage
rescue mission involving the daughter of a prominent galactic politician, the young girl was accidentally killed in crossfire. To protect the team and prevent a massive interstellar diplomatic scandal, Doggie took full responsibility, allowing the Space Police hierarchy to use him as a scapegoat. Now, a corrupt high-ranking official within the Space Police is manipulating this dark secret to eliminate Doggie and permanently cover up their own illicit ties to criminal syndicates.Meanwhile, two eager rookie officers—Assam and Leslie—are assigned to replace the veteran squad, but they quickly find themselves out of their depth. Leslie, in particular, is secretly connected to the conspiracy, wrestling with a
crisis of conscience. When the veteran Dekarangers confront the corrupt officials, Leslie has a change of heart and provides the crucial digital evidence needed to expose the conspiracy.Reunited in spirit and fueled by their unwavering trust in their mentor, the squad transforms once more. Using their classic morphers and teamwork, they engage in a fierce, high-octane battle against the corrupt security forces and alien mercenaries protecting the mastermind. With synchronized martial arts and heavy firepower, they dismantle the corrupt faction and clear Doggie Kruger's tarnished record. With their names cleared and justice finally served, Doggie is reinstated as commander. Instead of permanently staying together, the team shares a poignant farewell, knowing that no matter the distance or the passing years, the unbreakable bond of the Dekarangers will always endure across the galaxy, ready to answer the call whenever justice is threatened.