: Vrak reveals he has been holding Robo Knight captive and has reprogrammed him into Dark Robo Knight.
: Vrak reveals his master plan to plant three massive drills in the land and sea to reach the Earth's core and turn the planet into dust. [S21E16] Vrak is Back (1)
In a classic Vrak move, he tricks the Rangers into doing his dirty work. He sends his henchman, , to fight the Rangers. When the Rangers use their Sea Brothers power to destroy him, Vrak reveals that Tresnag was a "cipher" designed to absorb their attack energy. That very energy is what powers the second giant drill, leaving the Rangers in a state of despair as they realize they’ve helped Vrak get one step closer to checkmate . : Vrak reveals he has been holding Robo
: Forced to fight their former ally, the Rangers—particularly Noah —are devastated to see the guardian of the environment now acting as the "Destroyer of the Earth". The Ultimate Deception He sends his henchman, , to fight the Rangers
: By draining Orion, Vrak turns the Rangers’ Legendary Keys to stone and disables their Super Mega Mode . This forces the team to revert to their original Megaforce forms and arsenal, including the Gosei Great Megazord . Dark Robo Knight Returns
Vrak isn't just back for revenge; he’s back to finish what he started with a multi-layered plan to literally tear the Earth apart: