When an international flight lands at Boston's Logan Airport and the passengers and crew have all died grisly deaths, FBI Special Agent OLIVIA DUNHAM is called in to investigate.
It's still in the first season; the second season won't air until the fall. There was just a mini-hiatus because of the holidays (I think), and tonight's episode was the first one after the hiatus. It airs on Tuesday nights in the US, but I don't know when it airs in the UK.