Doug realized four things while lying under a highway in middle-of-nowhere Nebraska: -Concussions hurt. -The government had tried to kill him. -His friends were going to hate his plan. And the most horrifying, -Zombies are real. The second "Bad Day" book takes Doug, Jenna, Nikki and Terry on a road trip through a plague-swept America toward Mayday, Kentucky, a haven that may not be as safe as safe as it seems.