In the sequel to the original 2004 film , black market dealer Mitch Wilkinson locates one of the 18 missing pages of John Wilkes Booth 's diary and suggests that Ben 's ancestor , Thomas Gates , was a conspirator in the assassination of President Abraham Lincoln , so Ben sets out to prove his innocence by kidnapping the current U.S. President and by finding the disappeared hidden truth
assassination
Assassination of Abraham Lincoln
National Treasure (film series)