True story of a severely autistic child and his parents' struggles to cope with his affliction. Kyle (Andrew Byrne) was born with severe autism and, as his mother Nicola (Keely Hawes) determinedly throws her life into caring for his needs, a rift appears between her and Rob, (Ben Miles) her husband. Nicola only has her parents, Pat and Jim to rely on in her efforts to reach through the thick fog of autism into Kyle's heart, as they are also absolutely doted on Kyle and his wellbeing. When the family gets a Labrador pup, Thomas, there are signs that his innocent, pure canine heart might be reaching out to Kyle in ways that even the greatest human love cannot achieve. When Grandma Pat passes away, the family must solidify to overcome their grief but when Thomas becomes ill and looks like following Pat, Kyle's progress is threatened.