Serial from 70-90 for kids, Vilage with tunels below it with some kind of monster

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Serial from 70-90 for kids or teens, in horror style. propably from niderlands or germany.
Vilage with tunels below it with some kind of monster.

Hey, Garath, can you give us a confirmation (in a comment, or clicking on the "Solution" button under my Answer below) on whether the below is the right movie? Many thanks!

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1 Answer

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ā€œUnder the Mountainā€ (1981)?

Hey, Garath, can you give us a confirmation (in a comment, or clicking on the "Solution" button under my above Answer) on whether the above is the right movie? Many thanks!

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