The story of five random people that get entangled in a world of politics, conspiracies, and death, "Kfulim" starts strong, keeps a grip-your-sofa gripping second act and ends on a high note (even if, though, it leaves some loose ends that could have been better tied).
The plot in its basics: five citizens of Israel with double nationality but otherwise seemingly normal lives are accused of kidnapping the Iranian Minister of Defense. Little by little we get to know why, how and all the other answers to the questions behind the kidnapping. At the beginning, though, all five of them seem to be completely innocent people (ok, except Sean, who looks shady from second one). The plot does a decent job on developing this premise (even if, when you think about it after ending the show, it is all a little bit head-scratching because some plot points make no sense).
However, the strongest points of the show are the characters, all of them really interesting and well developed, and the pace of the development of the story. In regards of the first, the characters are fleshed out and the acting good enough. And in regards to the second, the rhythm, the music, the camera work all work to make every episode "Lost"-style gripping, normally ending with a cliffhanger and with some really nice twists along the way.