Sam Neill stars as Jonah Ludovic, a solitary man living out an unstated but remorseful destiny in a city that is steadily being ground up by civil war, artillery bombardments and mass evacuations. Rather than leave the city, Ludovic continues to go to his job at the local zoo -- staying on long after the rest of the staff has fled or been killed. Soon, a wounded boy and his mother join him. Now, they must all struggle to survive.