Power Rangers Unlimited: Call To DarknessThe prelude to the next monumental Power Rangers event DARKEST HOUR! AN UNEXPECTED NEW TEAM OF POWER RANGERS ARRIVE! As if the medium spanning, fan favorite villain Drakkon wasnt enough of a threat, Mistress Vile has special plans, ones that will bring the Rangers greatest foe into our world! But this scheming isnt without consequences for Drakkon, and hell have to take a page from the book of Zordon if he wants the world of the Coinless to survive.