Kishiryu Sentai Ryusoulger
65 million years ago, the knights of the Ryusoul Tribe were selected to go for a war campaign against the dictating Druidon Tribe who sought to rule Earth. But the Druidon's war campaign was halted by the meteor that brought the age of the dinosaurs to an end. They were forced to flee into space. Meanwhile, the Kishiryu were placed in a deep sleep as a failsafe should the Druidon return. The chosen knights choose to live in peace while passing their mantle down across generations. Today, the Druidon return to reclaim Earth. Current generations of knights, the Ryusoulgers, battle them with the support of Ui Tatsui and the father Naohisa Tatsui.