The Darkening

It isn't about the zombies, it's about the survivors.
A meteor hits a government research facility sending the world into chaos.
Chalice Hart must step up and lead a rag-tag group of survivors to safety.
Every place the group thinks is safe soon becomes overrun by either the undead or those wanting what the group possesses. Along the way, they accept other survivors into their group, while losing others on their journey to safety. Chalice's hope lies in Colton, the first they'd picked up, and on rumors of a cure.
Their growing hope is shattered when the undead begin to mutant into something not even the horror stories they'd read as children could prepare them for.
Will the survivors find their safe haven or will the world forever be overrun by the hordes of undead?