Lois McMaster Bujold - The Borders of Infinity

In this novell Miles infiltrates a prison camp at Dagoola IV, where he plots from within to free the prisoners. This is, in many ways, the archetype of a Miles story. He starts in a down and out situation (this one being a prison camp, far worse than most) and gets people to rally around him through the sheer force of personality, hope, and imagination. That, plus a fair bit of luck and good connections, lets him turn the situation on its head and make everything work out. The story ended up working far better than it was expected after the brutal beginning and shows a lot about Miles's loyalty to the people under his command.