Change of Plans

Jason Todd had always wanted to prove himself, to Dick, to Bruce, to the Titans, to himself, was always trying to be the best. Look where it got him. Chained to the ceiling and held captive by a psychopath with anger issues, who seemed to have a vendetta against the Titans.

Dick Grayson had sworn to protect those who could not protect themselves, Jason Todd included. And now the new Robin was gone, kidnapped because of something Dick had done five years ago, and he'd do anything to get his replacemt back, even if it meant surrendering to Deathstroke the Terminator.
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Titans season 2 AU, starting with 02x05, in which Jason doesn't fall and Deathstroke ends up with more birds than he anticipated.