Summoned from the year 2005 into the future via an evil plot, Conner, Kira, and Ethan, the original three DinoThunder Rangers, quickly encounter 2025's resident team, the SPD Rangers. But with between Broodwing's giant monster Dragoul, and rival Emperor Gruumm's own Troobian assault on Earth occuring at the same time, SPD will need a little help in the form of their historical guests.