At the onset of a zombie apocalypse, chaos descends as Rose loses her family, Ryan tries to get his bearings, and a desperate man finds a new guise.

William, Sun and Barbara try to drive to the stadium, but it's tougher than they thought: They're blocked by both living marauders and roving undead.

Rose, Spears, Ryan and Lance find a refuge. Learning they're not alone, they're schooled on the dangers of following the heart rather than the head.

Forced to fend for themselves, the survivors that were left behind must improvise and look out for both the dead and the living.

The desperate yet determined group undertakes a daring hit on a weapons stash, but the pandemonium threatens to swallow them up.

Soldiers arrive with both plans and promises. But questions remain as a survivor makes a bold move. Who can you trust? Where do your loyalties lie?

As the group approaches the stadium, everything goes sideways. The survivors blast through their bullets -- and their options.