Taylor and Carl Mitchell are brothers who have taken wildly divergent paths in life. But when a mysterious virus transforms most of the Earth’s population into bloodthirsty lunatics, they must learn to trust each other and work together in a dangerous new world where the slightest misstep could lead to the ultimate consequence. The brothers must face their innermost fears and confront loss as they try to survive the long journey home. But will anyone be there waiting for them? Sometimes there isn’t a happy ending