[s21e16] Vrak Is Back (1) -

The most emotional blow for the team is the return of Robo Knight , who has been MIA since the Megaforce finale.

: He abducts the Silver Ranger , Orion, and begins draining his alien life force to power his Gosei Orbs and disable the Rangers' Legendary powers . [S21E16] Vrak is Back (1)

: 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. The most emotional blow for the team is

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: Vrak isn't just back for revenge; he’s back

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 .