Of all the conflicts that the Power Rangers have faced over the course of more than three decades, BOOM! Studios' Darkest Hour is by far the most harrowing. Apart from losing one crucial battle after another, the Rangers have been forced to watch their very same powers fall into the hands of a myriad of their worst enemies. Now, even the most seasoned of heroes are left wondering what exactly it means to be a Ranger in the first place, and the harsh truth behind that question has absolutely nothing to do with the power they wield.
Source:https://www.cbr.com/mmpr-darkest-hour-what-it-means-to-be-a-power-ranger/