S2·E14 To Soothe the Savage Robeast

Zarkon oversees the wedding of Lotor and Merla. He sees the wedding as the way to unite their two evil kingdoms. Meanwhile on Planet Arus, a young woman named Taryn pines away for her lost love, Ro, who was taken as a slave to Planet Doom. Ro shows up with two mystery women, Merla and Haggar in disguise. Merla claims to have a crush on Keith, and in exchange for bringing Ro home, she wants Taryn to deliver a jar of fresh honey to the castle as a present for his birthday. Taryn gives the jar to Allura, who ponders her own feelings for Keith. After Taryn returns, Ro reveals that the jar actually contains poison. Now they have to get to the castle and warn the Voltron Force before any of them drink it.