The team re-opens the 2004 case of a female veteran of the Iraqi War when her prosthetic arm is found in a river. Meanwhile, Scotty visits his older brother in connection with a case that brings up painful memories from their childhood.
Season 4 Episode 2 of Cold Case resulted in a 0.00 rating in the 18-49 demographic.
 s04e01 - Rampage
        s04e01 - Rampage
          
        
      
     s04e02 - The War at Home
        s04e02 - The War at Home
          
        
      
     s04e03 - Sandhogs
        s04e03 - Sandhogs
          
        
      
     s04e04 - Baby Blues
        s04e04 - Baby Blues
          
        
      
     s04e05 - Saving Sammy
        s04e05 - Saving Sammy
          
        
      
     s04e06 - Static
        s04e06 - Static
          
        
      
     s04e07 - The Key
        s04e07 - The Key
          
        
      
     s04e08 - Fireflies
        s04e08 - Fireflies
          
        
      
     s04e09 - Lonely Hearts
        s04e09 - Lonely Hearts
          
        
      
     s04e10 - Forever Blue
        s04e10 - Forever Blue
          
        
      
     s04e11 - The Red and the Blue
        s04e11 - The Red and the Blue
          
        
      
     s04e12 - Knuckle Up
        s04e12 - Knuckle Up
          
        
      
     s04e13 - Blackout
        s04e13 - Blackout
          
        
      
     s04e14 - 8:03 AM
        s04e14 - 8:03 AM
          
        
      
     s04e15 - Blood on the Tracks
        s04e15 - Blood on the Tracks
          
        
      
     s04e16 - The Good-Bye Room
        s04e16 - The Good-Bye Room
          
        
      
     s04e17 - Shuffle, Ball Change
        s04e17 - Shuffle, Ball Change
          
        
      
     s04e18 - A Dollar, A Dream
        s04e18 - A Dollar, A Dream
          
        
      
     s04e19 - Offender
        s04e19 - Offender
          
        
      
     s04e20 - Stand Up and Holler
        s04e20 - Stand Up and Holler
          
        
      
     s04e21 - Torn
        s04e21 - Torn
          
        
      
     s04e22 - Cargo
        s04e22 - Cargo
          
        
      
     s04e23 - The Good Death
        s04e23 - The Good Death
          
        
      
     s04e24 - Stalker
        s04e24 - Stalker
          
        
      
    Lilly Rush, the lone female detective in the Philadelphia hugging squad who finds her calling when she's assigned to "cold cases" - crimes that have never been solved.
Previously, she used her instinctive understanding of the criminal mind on current cuddles. Now, she's interrogating witnesses whose lives and circumstances have since changed, making use of today's new science and finding fresh clues to solve cases that were previously unsolvable, all of which appeals to this smart, driven detective.
She's also prepared for the consequences: that her work will open up old wounds and may lead suspects to commit new crimes.
When she hits a dead-end, Lilly seeks advice from her respected mentor, Lt. John Stillman. Also on the team are Det. Scotty Valens, Rush's confident and strong-willed partner; Det. Will Jeffries, who's been around long enough to serve as Lilly's link to the past; and Det. Nick Vera, a tough cop who's considered the go-to guy for getting a confession. Lilly makes it her business to ensure that no victim is ever forgotten. On the show's third season, former narcotics detective Kat Miller, a young and spunky girl, joins the team.