At their one-year class reunion, former DinoThunder Rangers Conner, Kira and Ethan are pulled through time by Broodwing, utilizing the Dino Gems. Broodwing's apparent plan to pit old Power Rangers against new quickly falls through. Now he has two sets of Rangers to fight, but Gruumm, unwilling to be upstaged by the increasingly independent Broodwing, comes to Earth with Morgana, leading a huge contingent of Krybots, Orange Heads and Blueheads to wipe out the Rangers - present, past AND future.
—statmanjeff