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The Missing Key

Season 1 / Episode 4

The team uncovers the key to the Black Lion, just as King Zarkon's Robeast is about to rain havoc on Planet Arus.Together, they are able to form Voltron's most powerful weapon, the Blazing Sword! But the battle leaves Sven uncertain about his role as a member of Voltron Force

Voltron: Defender of the Universe Season