65,000,000 years ago, a dinosauroid-like alien named Keeper was pursued through the galaxy by Sledge, an intergalactic bounty hunter bent on acquiring the ten Energems in Keeper’s care and using them to conquer the universe. Keeper crash landed on prehistoric Earth, entrusting the gems to a group of dinosaurs for safekeeping and crippled Sledge’s ship with a bomb that left the bounty hunter stranded in deep space. Unfortunately, Sledge’s collection of asteroids held in a tractor beam accidentally rained down on prehistoric Earth and ultimately caused the extinction of the dinosaurs.
In the present day, Keeper is found by archaeologist Kendall Morgan and they set up a base under the Amber Beach Dinosaur Museum in the city of Amber Beach. They begin a mission to find the Energems, but five have already found by teenagers who use them to morph into the Dino Charge Power Rangers. The group consists of the Red Ranger Tyler, the adventurous leader of the group who is searching for his father who disappeared years ago on an archaeological dig; the Pink Ranger Shelby, a tomboy and waitress with a vast knowledge of dinosaurs; the Blue Ranger Koda, a Cro-Magnon caveman living in modern times as he found his Energem in his tribe’s cave and was kept in suspended animation until the present day; the Green Ranger Riley, the youngest of the group who is skilled with swords; and the Black Ranger Chase, the suave and laid back member of the group originally from New Zealand. With these powers, the Dino Charge Power Rangers fight against Sledge, Poisandra, Fury, Wrench, Curio, and their prison full of monsters in order to find the remaining Energems and protect the Earth.
As time goes by, the Rangers are joined by additional teammates with additional Dino Zords: the Gold Ranger Ivan, an 800-year old knight from Zandar who was trapped in the body of Sledge’s minion Fury and the Graphite Ranger Prince Philip III of Zandar the modern day crown prince of Ivan’s home country. Kendall takes over the position of the Purple Ranger from Albert Smith who abandons the position due to his fears of Fury’s minions. New threats also emerge, including the human-like villain Heckyl.