After the shocking events of Power Rangers: Ranger Slayer, Kimberly is determined to purge the world of Drakkon's legacy, starting with Deadlock; the prison tower where Drakkon held all those who opposed him. But even the Ranger Slayer has no clue of the true power kept in Deadlock—and what unlocking the doors will set into motion. As Kimberly investigates the worst of Drakkon's secrets, she sets in motion Drakkon's final plan—one that will pit her against a fan-favorite Power Rangers villain