B5 4x15: Illegal Orders, Mutiny, and Counter-Mutiny

"No Surrender, No Retreat". Captain Sheridan leads the White Stars and Babylon 5's fighter squadrons to relieve Proxima 3 from an Earth Alliance punitive expedition after President Clark's forces, led by Captain Hall, fire on refugees fleeing the system. Sheridan couches his demand for the EarthForce ships to stand down in the very real legal principle that an unlawful order MUST be disobeyed, and is challenged by his old Academy instructor Captain MacDougan. Sheridan reminds MacDougan that he himself taught that principle to Sheridan, and MacDougan agrees to take a backseat to the battle. His first officer takes exception to that, but the crew quickly takes exception to the first officer and removes him from the bridge.