After a failed rescue, our hero manages to hole up in a store in the town of Glendale. Hearing a radio broadcast announcing evacuations from the mainland in Union City, he begins gathering supplies and weapons and begins the journey across the state.
The zombie horde are unrelenting, insatiable. The only chance to survive is to make it to Union City in 40 days, before the evacuations end.
Move from town to town collecting all you can carry and defend yourself through the night.