Five heroes harness the mystical Samurai Symbols of Power to fight evil Master Xandred and his army of Nighloks. Xandred is stuck on a junk in the Sanzu River and plans to flood the planet. They are not alone in their struggle. An all-knowing mentor and special spirit animals called Zords aid in their attack against the relentless dark forces. Under the guidance of Mentor Ji and their devoted animal zords, these rangers aren't going to give up that easily. Red Ranger Jayden the serious samurai leader, Blue Ranger Kevin the former Olympic swimmer hopeful, Green Ranger Mike the funny one who needs more training, Pink Ranger Mia the big sister, and Yellow Ranger Emily the youngest country girl, who has a sick sister. Their powers have been passed from parent to child all the way from ancient times in Japan. When they make their handheld Folding Zords big, they engage Mega Mode and enter technological cockpits to wield the behemoths and merge them into warrior-like fighting machines.