A man arrives at Honolulu International Airport and is taken to the hospital after being struck by a car. Upon reviving, he checks the bag he was carrying and, being unable to find something in it, takes a cyanide capsule he had hidden in his jacket pocket and dies. The hospital had taken the object and put in a safe with his other valuables. Five-O discovers the object is part of a small surface-to-air missile. McGarrett recruits a police officer who can pass for the man and he will make attempt to make contact with those the dead man was going to meet. Five-O uncovers a plot to assassinate an exiled political leader who is heading to Hawaii for a layover as part of a trip to his homeland. The conspirators soon use one of their SAMs to avoid detection. The second will be targeted at the exiled political leader and everyone who is on the same commercial flight he is.
—Bill Koenig