The Hardy Boys S01E11 - No Getting Out

The town of Bridgeport is put under curfew with Joe and Biff missing. Frank realizes they must have gone looking for the Chamber of the Eye. When Frank asks Gloria for help finding the Chamber, Gloria doesn't know anything about an entrance to the old, sealed, mine tunnels so Frank must turn to Stacy for help. Frank lets Officer Jesse Hooper in on their investigation, and the boys find themselves in more danger than they'd expected.