The peaceful cosmos faces a dire threat when a dangerous and volatile
biological weapon known as the "Granium" falls into the hands of the ruthless and sadistic intergalactic mafia organization, the Alienizer syndicate. Led by the cunning and brutal Agent Ater. The syndicate plans to detonate the device on a densely populated resort planet, unleashing cataclysmic destruction purely for profit and sadistic pleasure. Sensing the imminent and catastrophic danger, the Special Police Dekaranger unit is immediately mobilized to intercept the weapon, dismantle the syndicate's operations, and rescue countless innocent lives trapped in the crossfire of this cosmic conspiracy.Banban Akaza, the hotheaded and passionate Red Ranger, leads his dedicated squad consisting of Hoji, Sen-chan, Umeko, and Jasmine into the heart of the crisis. Their investigation quickly leads them to an isolated, tropical pleasure resort that has been completely infiltrated and taken hostage by Ater's heavily armed mercenaries. As the Dekarangers infiltrate the luxurious yet perilous location, they are forced to navigate a series of high-stakes traps, intense shootouts, and brutal hand-to-hand combat encounters against waves of genetically enhanced Alienizer foot soldiers.Amidst the chaos, deep personal character motivations are pushed to their absolute limits. Hoji struggles to balance his strict adherence to police protocol with the desperate need for rapid improvisation, while Ban confronts his
inner demons of recklessness, learning to channel his boundless energy into precise, strategic teamwork. The narrative intensifies when the heroes discover that the resort's innocent civilian population is being used as human shields to prevent any heavy orbital bombardment or reckless tactical strikes from the Space Police mothership.The climax explodes into a breathtaking spectacle of sci-fi action when Agent Ater initiates the countdown to detonate the Granium bomb. Utilizing their advanced mecha and signature high-tech weaponry, the Dekarangers engage in a ferocious, cinematic battle that shatters the resort’s lavish architecture. Through sheer grit, unbreakable bonds of camaraderie, and flawless tactical synchronization, the team manages to safely neutralize the volatile weapon just moments before detonation. They subsequently corner Ater and deliver a definitive, high-octane finishing strike that obliterates the syndicate leader. With the resort secured, the hostages freed, and peace restored to the galaxy, the Dekarangers stand tall, reaffirming their eternal oath to protect justice across the universe.