Season
7 - Episode 7
Mar. 18,1971
Three boys are investigating a ruins of the old fortress during summer vacations.
6 - Episode 6
Feb. 28,1971
Three boys are investigating a ruins of the old fortress during summer vacations.
5 - Episode 5
Feb. 04,1971
Three boys are investigating a ruins of the old fortress during summer vacations.
4 - Episode 4
Jan. 18,1971
Three boys are investigating a ruins of the old fortress during summer vacations.
3 - Episode 3
Jan. 03,1971
Three boys are investigating a ruins of the old fortress during summer vacations.
2 - Episode 2
Dec. 18,1970
Three boys are investigating a ruins of the old fortress during summer vacations.
1 - Episode 1
Dec. 01,1970
Three boys are investigating a ruins of the old fortress during summer vacations.
Trailer
Three boys are investigating a ruins of the old fortress during summer vacations.
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