America the Lost

In a world where zombies exist there are a group of survivors who managed to land themselves on an island far away from the disaster. Twenty-one years later, Peyton has the opportunity to become an explorer and go venture to the place her parents used to call home. She's been training her whole life for this opportunity, but once she gets to the US is everything as she expected? She soon discovers the truth behind what happened and why no other explorer has returned back to the island.