The story of Gabe, an ordinary man who works as an emergency call handler for the Scottish Ambulance Service in Glasgow. His world is turned upside down when he receives a desperate life-and-death call from a woman who appears to know him. With Gabe under pressure to work out who she is, he makes a decision that threatens to have devastating consequences.

• Iain De Caestecker
• Joanna Vanderham
• Sharon Rooney
• Daniel Portman
• Taj Atwal
• Stuart Bowman
• Rona Morison
• Conor McLeod