Disclaimer: Various evil companies who cancelled the show own them, not me..
The first memories he calls his own are of fear, of pain, of being trapped.
He feels deep within that this is the moment he should fly free into the Great Space called home. but. he. can. not. move.
There is an already beloved voice instructing him, and he wants to do as she asks, but he is so frightened. In desperation he thrashes to break loose ... and senses that he can do more. The memory (programming, instinct) that shows him how is suddenly unlocked.
He will escape. He will fire his weapons. And he will never be trapped again.
The End