Strength has always been Hunk's most notable quality, but intelligence? Well, he sure isn't stupid, but that doesn't stop repeated jokes from Pidge and others. This leaves Hunk in one sour mood, and a supply run doesn't make him feel any better. If anything, Lotor and Haggar make things worse. Haggar casts a spell on Hunk, turning him against the rest of the Voltron Force and the Yellow Lion quite gray. This destructive duo goes on the attack, but Keith, Lance, Allura and Pidge can't risk hurting them. They need another solution and quickly, as Lotor has a new hostage – Amalgamus.