First of all, in Lincoln's time, that little gold was enough to reverse the defeat, so the Confederacy wanted Ben's great-grandfather to crack the code in order to reverse the defeat with gold, and Lincoln was the commander-in-chief of the northern army, so the South wanted to assassinate him. This is easy to understand. Hundreds of years have passed, and the United States is unified and strong, and the gold is still there. It is a descendant of the Confederacy. In order to carry forward the family's reputation, they are determined to find the treasure, but their level is not enough. So Ben's ancestors were framed. On that piece of paper, Ben said it was a treasure map, while the descendants of the Confederacy said it was the signature of Lincoln's assassin. Therefore, in order to clear the name of the family, we must clear the name. What is written on that paper is really a treasure map (it's really a bit far-fetched here). Therefore, the descendants of the Confederacy are willing to cooperate with Ben in treasure hunting, but the starting point is different. One is to clear the name of the family, and the other is to make the family immortal and carry forward.