Power Rangers Operation Overdrive

Power Rangers Operation Overdrive is a TV show "Power Rangers" started in 2007. It aired from February 26 to November 12 2007 32 episodes. It is based on the Super Sentai series "GoGo Sentai Boukenger". It is the sequel to "Power Rangers Mystic Force". A sequel to called "Power Rangers Jungle Fury" started in 2008.
Plot.
Five teenagers set out to protect ancient jewels which hold great powers from the hands of two evil brothers who want to use it for selfish reasons.