Welcome to Megalopolis! Once a peaceful Earth city, it's now a haven for criminals aided by the nefarious Alienizer arms dealer, Agent Abrella. Now, it's up to Ban Akaza and the Special Police Dekarangers to protect the Earth from the invading Alienizers and finally bring peace and justice back to the planet.
After losing track of an Alienizer, Azaka Banban is moved to the Earth S.P.D. Here, he joins the fight against the Alienizers with the other four rangers. A new journey begins...
Three unidentified objects have landed in Japan. Upon investigation, they escape. An object is found near the crime scene, which had an audio recording on it, with a plan to take over Earth. Luckily, the Dekarangers are on the case, fighting their first Alienizer, Moyeda. But, Ban isn't accepted by the others are a leader nor member. Will they ever? Also, what's Ban's will to fight? Does he have any?
Houji's perfect investigation record is put to the test when he gets caught up in an investigation of a kidnapped alien princess.
After his perfect record seemingly becomes tarnished by an Alienizer getting away with the princess and the Wellness Stone, Hoji and Ban pursue Rikomoian Kevakia into virtual reality in order to find a way to defeat the virtual criminal.
Swan has created a new K-9 model, Murphy. But, this mechanical dog seems unable to be tamed. Umeko's patience is tried and a bond is created...
Sen-chan, DekaGreen, is the most peculiar of the Dekarangers. He does the most random things that make him like an idiot, and Ban acknowledges it. But, Sen may prove to be more vital to the team than anyone realizes...
An old foe from Doggy Kruger's past has returned in a new body and captures Swan! While the Dekarangers move out to protect the city once again, Kruger goes it alone to save Swan. The Dekarangers aren't quite at ease with this decision, but the former ""Jigoku no Banken"" surprises everyone...
After Doggy reveals that he can transform into DekaMaster, the Dekarangers become dependent on him, Ban especially. But, a new, powerful Alienizer appears and Doggy refuses to help! The Dekarangers must learn the importance and meaning of a team if they're to survive this...
The Dekarangers discover a mysterious android girl. Suddenly, this girl slowly develops human emotion, and Sen-chan volunteers to let her grow more human to find out the reason why the Alienizers are after her...
The android girl, Meria, is revealed to be the brain to the large machine monster Gigas! Sen-chan and the other Dekarangers must continue to protect Meria while dealing with an out-of-control Gigas that's destroying the city! Perhaps it's time to show off DekaBase's true colors...
Umeko admires Jasmine's mature way of doing things. So much that she resorts to IMITATING her! After this, the female Dekarangers grow closer...
Zoiner Seijin Beetonin returns to Kyoto after 140 years...only to find it has changed since he's been gone. Determined to thwart the "invaders," he accepts Ban's challenge to a one-on-one duel, Alienizer to descendant of Akaza Banoshin!
Hoji...acknowledging Ban as his ""partner""?! Clearly, something is amiss. Is this truly the real DekaBlue??
Even when it's her day-off, Jasmine gets caught into serious trouble when she encounters Succubus, one of the Three Siblings of Hell. Seeing the horror and destruction these powerful Alienizers are capable of through her PSI powers, Jasmine chooses to surrender and go with the siblings in order to spare the Earth. Can Ban's passionate thoughts of justice reach her in time?!
After the third Sibling of Hell, Blitz, makes it to Earth, it's clear that he is too much for the Dekarangers and even DekaMaster! A Tokukyou specialist is summoned to Earth to take care of Earth's crisis. And his name is DekaBreak!
Tokukyou specialist, Aira Tekkan ""Tetsu,"" is a young man that insists on fighting without any emotion and therefore doesn't understand Ban's reckless and passionate methods. Tetsu sets off to finish the remaining two Siblings of Hell and threatens to discard the Dekaranger team indefinitely! But, Ban and the others show Tetsu the true power of their emotions...
Tetsu gets captured by an Alienizer that 'doesn't' yearn for his 'miserable' son, and it's up to Umeko to negotiate with him to save him and stop the Alienizer from activating a bomb that would destroy the entire city! But, can a simple-minded girl like Umeko be able to understand a monster who reverses the meaning of his words??
A young woman is the only one to witness a crime happening in the forest. Too bad she's an elder Alienizer who's got the hots for Sen-chan...
The Dekarangers move out to track down the Alienizers they thought they previously deleted! Will they get to the bottom of this mysterious case? Meanwhile, Tetsu visits an Alienizer that he himself turned in, Jeaneio, to interrogate him for the sudden disappearances of the innocent. Hatred runs deep because this Alienizer is responsible for the death of Tetsu's parents...
Jeaneio has the ability to trap people inside his mirror world with the use of any reflecting object, claiming it to be his 'art.' Now that he used Tetsu to escape from prison, he plans to make him suffer by capturing the other Dekarangers! Can Tetsu be able to defeat Jeaneio, save his friends, and release himself from his dark past?
Dynamo Seijin Terry X has been on Jasmine and Hoji's mind for quite some time after what he has done to their old comrade Leon (Earth's original red ranger). Terry X steals the body of espars converted to plasma X contributing to abrera's ""big project"" up ahead; what does this mean?!?!!?!? Will these Jasmine and Hoji be able to get vengence against a insane Espar thief?!?!?!
Ban has just been recommended to firesquad toikyou and tetsu seem really proud of him. Meanwhile, an alienizer by the name of Jerifis is using sejiin's bodies for his own evil gain, is ban next on his list?!?!?! There will be a dark surprise by the end of the ep. Could it be?!?!?!?!
Ryuji Sainei
Banban 'Ban' Akaza
Tsuyoshi Hayashi
Houji Tomasu
Yosuke Ito
Senichi 'Sen-chan' Enari
Ayumi Kinoshita
Marika 'Jasmine' Reimon
Mika Kikuchi
Koume 'Umeko' Kodou
Tomokazu Yoshida
Tekkan 'Tetsu' Aira
Tetsu Inada
Doggie Kruger (voice)
Mako Ishino
Swan Shiratori
Toshio Furukawa
Narrator
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