On earth ridden with aliens, after the attack 15 years ago, there is only one hope for humanity, The Ranger Association and the super-powered suits they use to fight against the aliens.

Meet Rancrew, who despite being the son of the legendary Red Ranger, did not inherit his abilites at all. After a twist of fate, he obtains his father's red suit, becoming the world's most important hero, but without the skill to back it up.

Now he must pretend to be the Red Ranger, all while searching for a suitable successor at the Ranger Academy!