Raymond Lembecke is a con just out of prison after serving time for selling drugs for his mob boss Tony Vago. (Lembecke was innocent and took the rap for Vago.) Lembecke thinks Vago owes him big time so, when his former boss gets him a measly job in a warehouse, he decides on revenge and plans to steal a million dollars worth of drugs from him.
Harmon "Harm" Rabb Jr. is a former pilot turned lawyer working for the military's JAG (Judge Advocate General) division, the elite legal wing of officers that prosecutes and defends those accused of military-related crimes. He works closely with Lt. Col. Sarah Mackenzie, and together they do what needs to be done to find the truth.