In 1910 , Robert Todd Lincoln , an esteemed scientist , the only living son of former US President Abraham Lincoln , and a close friend of incumbent President William Howard Taft , reveals to the President that he has found an old pocket watch that belonged to his father . Lincoln explains that he can find no records of his father ever acquiring or owning the watch ( though the watch fob was found on Abraham 's person the night of his assassination ) , and although the watch has been running for a very long time , there is no inbuilt way to open or adjust it , and it has no discernible power source , save for a small cylinder of an unknown material . Furthermore , the watch bears a Russian inscription that translates to " Made in America " , suggesting that the watch came from Russian America . Lincoln believes that the watch is so technologically advanced that it could not possibly have been built by humans , leading him to theorize that extraterrestrial beings are beginning to populate Alaska . Lincoln requests to use Taft 's secret government zeppelin , Airship One , to travel to Alaska and test his hypothesis , which Taft gladly allows
his assassination
Assassination of Abraham Lincoln
The Great Abraham Lincoln Pocket Watch Conspiracy