ヘルズ三兄弟の一人・ボンゴブリンを撃破した特キョウ・デカブレイク。共に戦う助っ人かと思いきや、ヌマ・O長官の指令は「地球署は捜査の全てを鉄幹に引き継げ」とのことだった。足手まといだから何もしなくていい、とテツに言われたバンはブチ切れ……。
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
