When a Marine helicopter is struck by an unknown flying object and crashes in the desert hugging the Marine pilot, Rabb and Bud are sent to investigate the crash. Soon after arriving at the site and finding some unknown metallic-like fragments near the chopper, they are confronted by men in black from the government's Defense Security Division (the DSD). They tell Harm they are now in charge of the investigation and to leave the site. However, Rabb doesn't intend to give up his investigation into this incident so easily.
 s03e01 - Ghost Ship
        s03e01 - Ghost Ship
          
        
      
     s03e02 - The Court-Martial of Sandra Gilbert
        s03e02 - The Court-Martial of Sandra Gilbert
          
        
      
     s03e03 - The Good of the Service
        s03e03 - The Good of the Service
          
        
      
     s03e04 - Blind Side
        s03e04 - Blind Side
          
        
      
     s03e05 - King of the Fleas
        s03e05 - King of the Fleas
          
        
      
     s03e06 - Vanished
        s03e06 - Vanished
          
        
      
     s03e07 - Against All Enemies
        s03e07 - Against All Enemies
          
        
      
     s03e08 - Above and Beyond
        s03e08 - Above and Beyond
          
        
      
     s03e09 - Impact
        s03e09 - Impact
          
        
      
     s03e10 - People v. Rabb
        s03e10 - People v. Rabb
          
        
      
     s03e11 - Defenseless
        s03e11 - Defenseless
          
        
      
     s03e12 - Someone to Watch over Annie
        s03e12 - Someone to Watch over Annie
          
        
      
     s03e13 - With Intent to Die
        s03e13 - With Intent to Die
          
        
      
     s03e14 - Father's Day
        s03e14 - Father's Day
          
        
      
     s03e15 - Yesterday's Heroes
        s03e15 - Yesterday's Heroes
          
        
      
     s03e16 - Chains of Command
        s03e16 - Chains of Command
          
        
      
     s03e17 - The Stalker
        s03e17 - The Stalker
          
        
      
     s03e18 - Tiger, Tiger
        s03e18 - Tiger, Tiger
          
        
      
     s03e19 - Death Watch
        s03e19 - Death Watch
          
        
      
     s03e20 - Imposter
        s03e20 - Imposter
          
        
      
     s03e21 - The Return of Jimmy Blackhorse
        s03e21 - The Return of Jimmy Blackhorse
          
        
      
     s03e22 - Clipped Wings
        s03e22 - Clipped Wings
          
        
      
     s03e23 - Wedding Bell Blues
        s03e23 - Wedding Bell Blues
          
        
      
     s03e24 - To Russia with Love (1)
        s03e24 - To Russia with Love (1)
          
        
      
    After being diagnosed with night blindness, Lt. Cmdr. Harmon Rabb, an F-14 Tomcat fighter pilot, is forced to change careers. Cmdr. Rabb chooses to join the Navy's Judge Advocate General (JAG) Corps. There he both defends and sometimes prosecutes Navy and Marine Corps defendants. He is sometimes assisted by fellow lawyer, Lt. Sarah "Mac" MacKenzie, and his other fellow JAG staff.
Many of Rabb's cases require him to both keep up his F-14 qualifications and travel the world, in order to bring justice to the cases he is trying.
Rabb must also deal with the fact that his father, also a former Navy pilot, never returned home after being held prisoner after he was shot down in North Vietnam. Rabb believing his father is still alive continues the search he has pursued to find his father, since his teens.