Elizabeth goes missing. Clay and The Virginian ride out to search, soon followed by Trampas and Holly. They find Elizabeth trapped in an abandoned mine, where she had taken refuge during a storm. Another cave-in thwarts efforts to dig her out. Things look bleak until wolves are spotted near the mine, raising the possibility that the animals may have been using a forgotten emergency tunnel as a den. A desperate search for the tunnel ensues. (thetvdb.com)