A super virus swept across the world, turning the world into ruins. Liu Xiaodong, an ordinary courier, accidentally formed a five-person survival team. In a world surrounded by various natural and man-made disasters, they traveled through the ruins with difficulty but comedy. Along the way, he met, lost, and reunited many fellow travelers, and unlocked the secrets behind the doomsday crisis. In the reality where everything is a mess, the team always uses optimism and "doomsday complaints" to resolve danger and sadness, and even affects other survivors around them. In the end, the team members each grew up through numerous tests, and worked together to promote the reconstruction of the fragments of human civilization, and spread the spirit of "humor never dies" to the new world.
