BOOM! Studios' acclaimed "Mighty Morphin Power Rangers" series is coming to an end, and Looper has the first details on the final chapter of the "Darkest Hour" saga that brings the series to a close.

Billy Cranston's final legacy is as a problem solver of the Morphin Grid in Mighty Morphin Power Rangers: Darkest Hour #1. In the distant future, Billy works to repair the Morphin Grid from the ...