[5] The website BoyActors describes the synopsis of the miniseries thus: Set deep within the German Alps in a medieval castle.

The boys explore every inch of the castle, the spooky vaults and secret passageways... at night they see a mysterious Knight in Armour with supernatural strength, galloping out of nowhere and fading back into the mist...The cast is as follows:[7] Note: The titles of the episodes have been translated from a German website.

[10] Special features include: a making of featurette, interviews with the cast and crew, lists of biographies, and trailers.

[11] The German website new-video gave the series a rating of 2.5 stars out of 5.0, based on 2 user votes.

[16] The first film was given an average rating of 1.62 out of 5 based on 8 votes, on the Dutch site MovieMeter.