Runic Power Rangers

Summary
Set in the present teen 5 scientists travel back in time to ancient Greece, to a town discrete, mysterious town called Kithnos. But when they get there their time machine breaks leaving them unable to return home to the present. With their translatorial headset - a headset that translates speech from somebody else and from you - they discover 5 gems. They find out the gems are called runes and they are the source of some most power ranger morphers. They encounter mythological monsters who want the runes to make morphers for evil. The 5 Scientist agree to use 5 runes to protect and find the remaining runes.

They figure out that they must fix the time machine to travel to different times before certain power ranger morphers are needed. They then transform the runes into certain morphers ( Mystic Force, Mighty Morphing, Dino Thunder, ect. ) so other power rangers can fight monsters.