The Archies check out a supposedly abandoned mine, only to discover it's something else entirely. Not surprisingly, a certain prankster arranged the whole thing in "Who's Afraid of Reggie Wolf?". Dreamworks Classic, the current rights holder, now has a YouTube channel, from whence we get this episode.
Reggie, as you can see, gave himself away by acting calm through the whole thing. No sooner had Betty & Veronica blamed Archie, than Reggie, predictably, turned the blame his way by laughing. Real smart, Reg. NOT!