by Al Smith Carrie ..... Sarah Ridgeway Mark ..... Tim McMullan Will ..... Rick Warden Train Driver ..... Christine Kavanagh Craig ..... Justice Ritchie Rail Operator ..... Sam Dale Paramedic ..... Shaun Mason Directed by Sally Avens Carrie is a call handler for the ambulance service. Every day she faces heart stopping situations. When a man calls with a suspected stroke Carrie knows she must waste no time in getting help to him but he is having trouble communicating.