In a post-apocalyptic world, siblings Sprout and Russell are struggling to survive after the world collapsed. They encounter a group of people and become entangled in a quest to recover a mysterious box, which is more important than food. The group faces dangers from bandits and their own internal conflicts, leading to a confrontation that tests the bonds of loyalty and family. The story explores themes of survival, the complexities of sibling relationships, and how past traumas can influence present actions, revealing that sometimes love can hurt.