The Power Rangers return to Earth... but not like you've ever seen them before. Stationed at an underwater command base, the Rangers are now part of a super-secret Lightspeed Rescue Squad. Their mission? To battle for justice... fight against evil... and make the world a monster-free zone. Armed with the coolest, most powerful zords ever, the Power Rangers are using amazing trains, trucks and helicopters - whatever it takes - to get the job done!