Lost on the labyrinth of a Paleolithic cavern complex, Indy Jones encounters references to a mythological beast that may have existed twenty-thousand years ago--and five years later Dr. Jones confronts the legend again, and the woman who is hoping to find the fabled unicorn's horn.nbsp;nbsp;But so is someone else from Indy's past, a man who will stop at nothing to obtain the ancient relic.nbsp;nbsp;Some say the unicorn's horn came from an animal made extinct by the Great Flood.nbsp;nbsp;Others say the horn is an effective antidote to poison and a mystical relic.nbsp;nbsp;Indy discovers that the horn's power is less than benevolent, and the same could be said about the intentions of a certain beautiful art historian.