Colt .45 S01 E20 The Golden Gun

"A Lightning Bolt When He Drew That Colt"

Frank Wilson, a notorious gunfighter, arrives in town to see his son, who has changed his name because he's ashamed of his father. It's not long before Frank Sr. is forced to kill a challenger in a gunfight, after which he collapses. It turns out that he's terminally ill and hasn't long to live, and has come to town to leave his son a golden gun and a map to the spot where he has hidden %50,000 in stolen loot.