Ahead of Hold The Line, I caught up with Sam Macgregor to talk about the themes at the heart of the production, the creative journey behind it, and what audiences can look forward to when the lights go up.   Hold the Line is rooted in your real-life experience working on the NHS 111 frontline - what made you feel this was a story that needed to be told on stage?  People have always been into medical dramas as well as sitcoms set in an Office, or a work place environment, so a