Sam Fisher is a renegade agent who once dedicated his life to the service of his country, only to see the agency he served turn against him. Reeling from personal tragedy, having lost his daughter and shot his own best friend, Fisher finds that betrayal has made him question everything he once believed. Cut loose from the organization that made him, he sets out on his own to uncover the truth behind what happened. Now answering to no one, he will stop at nothing to learn who is responsible, confronting anyone who stands in his way.