After five thousand years of incarceration, the evil Diabolico and his treacherous army of demons have escaped their imprisonment, and will stop at nothing to destroy the community of Mariner Bay and its innocent citizens. The new Power Rangers, empowered with top-secret technology, are the planet's only hope. Chosen for their expert skills, this unique team of five (a firefighter, an aquatics professional and a martial master, an accomplished aviator, an extreme sports enthusiast and a paramedic) is commissioned to defend Earth from the evil Diabolico and wage their battle from the safety of their high-tech underwater compound and weapons laboratory, the Lightspeed Aquabase. The stakes are high as these brave Lightspeed rescuers form Earth's final line of defense.