Trying to find a story where Caldwell and Sheppard are taken prisoner. Sheppard keeps agitating their captors to keep them focused on him rather than Caldwell and Caldwell is shocked at the amount of torture Sheppard is willing to undergo to protect him from them.
Found by amycat8733. "Hero Defined" by stella-pegasi
Found by amycat8733. "Hero Defined" by stella-pegasi