The Unknown is a TV show on British national television from Channel 5 with an average rating of 4.0 stars by TelevisionCatchUp.co.uk's visitors. We have 1 episodes of The Unknown in our archive. The first episode of The Unknown was broadcast in October, 2016. Did you miss an episode of The Unknown but don't you wan't that to happen in the future? Please set an alarm and add The Unknown to your favourites, so we can remind you by email when there's a new episode available to watch. For free!