Ok it's set in the 1960s/70s, but the RAF Mountain Rescue was around then and had telephones and covered Yorkshire and were specialist trained in cliff rescue. I've watched a practise cliff rescue dozens of times and they should lower the stretcher DOWN not up surely and no doctor would ever perform such a rescue FGS
I mentioned that to my wife but we found it exciting anyway. It doesn`t take much to please us. The TV Guide states it is the last in the series. Shame.