In a desperate bid to outrun a violent pandemic, Andy and Kay have holed up on a houseboat with their one-year-old daughter, Rosie. Their protected river existence is shattered by a violent attack, which sees Kay tragically die and Andy infected. Left with only 48 hours before he transforms into one of the creatures they have fought so long to evade, Andy sets out on a precarious journey to find a new guardian for his child.
Source