JAG: Harm faces a court-martial when a letter critical of the President appears on the Op-Ed page of a newspaper and is traced to his computer.As an investigation threatens Harm's promotion as well as his entire career, a well-known conservative organization offers to represent him and Harm accepts. The key to Harm's defense is to find the actual letter-writer, so Bud digs through Harm's old case files searching for those with an axe to grind.