November 1, 1950 -- an unseasonably hot afternoon in sleepy Washington, D.C. At 2:00 P.M. at his temporary residence in Blair House, President Harry Truman takes a nap. At 2:20 P.M., two Puerto Rican natives approach from different directions. Oscar Collazo, a respected metal polisher and family man, and Griselio Torresola, an unemployed salesman, don't look dangerous, not in their new suits and hats, not in their calm, purposeful demeanor, not in their slow, unexcited approach. What the three White House policemen and one Secret Service agent guarding the president cannot guess is that under each man's coat is a 9mm German automatic pistol and in each head, a dream of assassin's glory.