It seems most people hated it or loved it. But hey this is suppose to be hokum , unreal and fun . The director of cyber attacks , Abby, was totally unbelievable as a hacker and a computer expert. I kept harking back to 'call the midwife 'whenever she appeared. Her boss similarly. The plot is meant to be implausible and the characters a cliche. But, I stayed with it for 6 episodes (3 would have been appropriate) and it started to drag from 4th episode. The reason and the culprit for the train going around in circles (literally ) was very unconvincing which let it down finally.