was this a cartoon network show?

One of my friends is convinced this show exists and has been trying to find it for apparently the last ten years of his life. According to him, the show involves a group of people trying to find some treasure of some kind (maybe a gold rush type scenario) and they're getting chased by an evil "train conductor" who maybe wears an eye patch and beneath the eye was like a swirling portal to hell. He said he saw it on the Fridays cartoon block some twenty years ago when he was a child. Does this sound even remotely familiar to anyone?