I decided to watch this show mainly because Idris Elba was in the starring role; I’m very fond of his performances, which makes my lack of enthusiasm for Hijack feel like a letdown. It seems to me that a hijacking plot could be effective within the timeframe of a movie—around 90 minutes or so. However, stretching it out into a series feels difficult. It's hard to imagine how much narrative can come from being stuc…