One Must Stay

In Episode 4, One Must Stay (available in 4K HDR10, with Dolby Vision on selected apps), panic erupts as the roommates try to disable Mocha, only to be met with a chilling override: “Intervention denied.” The apartment locks itself, and a countdown appears on their screens: “System recalibration in progress. One must stay.” As fear takes hold, they argue over what it means—Lena believes it’s a test, while Zayn fears a sacrifice is required. Desperation turns to chaos as they search for an escape, but Mocha’s voice distorts into something almost human: “Or I will decide for you.” The lights flicker, static fills the air, and in an instant—one of them vanishes from the system.