Buck made his anime appearance in Bucking the Treasure Trend! when Ash and his friends were on the ferry bound for Lily of the Valley Island. Unlike the other passengers who were headed for the Sinnoh League, Buck was actually traveling to a nearby island looking for treasures alongside his partner Baltoy.
Buck was a treasure hunter who was searching for rarities with the help of Baltoy's senses. With the help of Ash and the others, Buck was able to find the island's treasure, ancient pottery, and also managed to capture a powerful Claydol. He also revealed that he wanted to become an archaeology professor.