After millions of years, the Deboss Army has returned to attempt to wipe out the world of man, after having nearly succeeded to do so to the world of the dinosaurs.
Standing in their way is Daigo Kiryu, who has been tasked to first find and battle the ZyuDenRyu Gabutyra so he can become one of the Kyoryugers.
冰結城惡魔意圖滅絕人類,遠古的恐龍之靈和人類的正義力量結合後,以「獸電戰隊.強龍者」的姿態抗衡。自稱「King」的年青人桐生,醍醐獲賢者多連指示,降服以獸電池力量驅動的機械恐龍暴咬龍後,正式成為「獸電戰隊.強龍者」主力,初出即挫敗冰結城派來搞破壞的冰河怪。