Sierra Six is an operative who works for the CIA in undercover missions, an assassin employed to get rid of the targets deemed inconvenient to the Agency. Sentenced to decades in prison at a very young age, he was rescued from prison and trained for this job by agent Donald Fitzroy, but in recent years has been marginalized by the rampant Denny Carmichael. Now Sierra Six works for him, who doesn’t appreciate the Sierra program and in fact sends the agent to eliminate one of his precursors, Sierra Four...
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