Stray Kids finally go on break between work, school, and performing. This break is much needed. What will happen when they all go on vacation?

Two years after the world fell silent, survival has become routine. In the ruins of a forgotten city, Hyunjin keeps count of the days. Felix keeps the others alive with laughter. Together, they've built something close to peace - a fragile base of warmth in a cold, dying world. But when a routine supply run goes wrong, the cracks begin to show. Whispers of a cure resurface. Hope takes root in a place it shouldn't. And in the space between fear and devotion, love becomes the most dangerous thing left alive.