"The Other Wiseman" by Henry Van Dyke
aka, "The Fourth Wise Man"
The wonderful story of the other wise man who was too busy helping others to join his friends on their journey. He misses giving his gift to the baby Jesus but spends his life serving others and giving away his gift. He finally meets the adult Jesus on his way to the cross.
Henry Van Dyke was a famous 19th Century Presbyterian preacher.
Two Video Versions:
The Fourth Wiseman, 1985, a little over an hour long. Stars Martin Sheen as the wise man and Alan Arkin as his servant. A terrific movie. Available for purchase at your favorite online retailer. Here's a full preview of it on YouTube:
"The Story of the Other Wiseman, 1989. 24 minutes. Here's an animated version of the story (which is in the public domain) produced a number of years ago for the LDS Church. Nothing LDS about it. YouTube: