The game starts with and his friend Ed Jones returning from a two-week fishing trip at Mt. Tanner. Completely cut off from the world, they are shocked to find that a zombie apocalypse has begun in their absence. After fending off attackers at a ranger station, they meet Maya Torres , a former soldier, and eventually make radio contact with Lily Ritter .
: As the survivors drive through the breach, they see a landscape littered with wrecked cars and bodies, realizing the apocalypse has already spread far beyond the borders of Trumbull Valley. Legacy and Expansion
: This story runs parallel to the main game, following a military unit called Greyhound One in the city of Danforth as they attempt to rescue high-value scientists.
: Re-visits Trumbull Valley years later, exploring the evolution of the virus into the Blood Plague and the fate of original characters like Lily Ritter, who eventually founds "The Network".
: Judge Lawton leads a group of citizens under strict martial law, hoping to wait out the incursion. This group eventually falls when the courthouse is overrun by zombies.
The story of State of Decay follows a small group of survivors trying to escape a zombie-infested valley as society collapses around them.
With the army retreating and Captain Montresser evacuated, Sergeant Tan remains behind to help the survivors escape. The only way out is a road blocked by a massive concrete wall built by the military.
As Marcus and the others work to fortify their base and gather supplies, they encounter several other factions and enclaves: