In Splinter Cell: Conviction, Sam Fisher's humanity is demolished, leaving nothing but an emotionally frail and agitated shell of a man. He lost his daughter. Everyone he trusted betrayed him. He's teetering on the edge of madness, and his thirst for revenge is the only thing driving him.
Conviction follows Sam as he wrenches answers from those who have wronged him. His methods are brutal, often making Jack Bauer's interrogations look like relaxing massages. Heads are smashed through urinals, hands are impaled by knives, and most people who exchange words with Fisher likely won't talk again.