Crystal Venom.As Allura recovers, she spends her time enjoying the company of her father's artificial intelligence. With Sendak in custody, they decide to draw out his memories in order to learn information about Zarkon and the Galra empire. While waiting, the Castle begins displaying strange behavior: Hunk and Pidge are attacked by malfunctioning kitchen equipment and later stuck in zero-G, Lance is locked in a cryo chamber and later almost sucked out of an air lock while Keith is attacked by a rogue training droid...