009-1 Episode 4: Invitation from an Old Castle
Episode 4 of 12 of 009-1, aired October 26, 2006, 24 minutes. Available with English subtitles and dub where released.
Episode summary
009-1 has been invited to a castle along with two other Western Block agents and three agents from the Eastern Block in order to find a missing scientist. When phantoms begin appearing and agents start dying, things get interesting. The last two survivors are 009-1 and Loki.