Finn Lane is expelled into zombie hordes after Zack seizes the base his parents left him and Vivian abandons him for safety. Powerless and betrayed, Finn barely survives until he awakens the Plant System and begins summoning plants to fight while farming corn, watermelon, and cacti as others scavenge. He uses crops and plant guardians to defend himself and build resources, reversing his immediate helplessness. The key turn: Finn uncovers an unexpected SSR item among scavenged loot — a sudden opportunity that could shift his fate, even though the stolen base and Vivian remain unresolved.