During their attempt to arrest a Petty Officer and a suspected drug-smuggler at Pax River, McGee's left injured by the Officer's dog. As the team try to get to the bottom of the Officer's death while also trying to break open a drug ring in Pax River, Abby, believing that the dog is innocent puts her career on the line as she seeks to prove that the dog is innocent and that someone else is responsible.
- McGee adopts the former attack dog, "Jethro" after Abby tricks him into accepting the dog.
- Palmer reveals that he spent two summers as a veterinary assistant during college.
- This is the second time a dog is named for one of the NCIS Agents after being taken into custody. Kate named a dog "Tony" in the second season episode "Caught On Tape".
- The song that is playing while Abby is dancing with the dog in her lab is "The Dog Song" by Nellie McKay while the song that's playing when Abby locks McGee out of her lab is "Love Cats" by The Cure.
|Leroy Jethro Gibbs||Mark Harmon||Special Agent in charge of the Major Case Response Team, NCIS.|
|Anthony DiNozzo||Michael Weatherly||Senior Special Agent, MCRT, NCIS.|
|Ziva David||Cote de Pablo||Mossad Liaison to the NCIS.|
|Abigail Sciuto||Pauley Perrette||Chief Forensic Specialist, NCIS.|
|Timothy McGee||Sean Murray||Junior Special Agent, MCRT, NCIS.|
|Jennifer Shepard||Lauren Holly||Director of NCIS.|
|Donald Mallard||David McCallum||Chief Medical Examiner, NCIS.|
|James Palmer||Brian Dietzen||Ducky's assistant.|
|Nikki Jardine||Susan Kelechi Watson||A NCIS Analyst.|
|David Warfield||Roger Cross||A man stationed at the Pax River Base.|
|Erica Perelli||Rachel Kimsey||A Petty Officer and the killer.|
|Matthew Sanchez||Jorge-Luis Pallo||A man who appears in the episode.|
|Colin Dixon||Brian Gross||A man who appears in the episode.|
|Lance Tolliver||Matt Corboy||A man who appears in the episode.|
|Scott Bowen||Derrick McMillon||A man who appears in the episode.|
|Pete Bidwell||Tripp Pickell||A man who appears in the episode.|
|Uniformed Guard||Brian David Jones||A man who appears in the episode.|
|Seaman (Dog Tags)||James Ryen||A man who appears in the episode.|
|Butch||Rowdy the Dog||A drug-dog the team take back to NCIS so that Abby can examine him for evidence. She later calls him "Jethro" in honor of Gibbs and McGee is later forced to adopt him.|
|NCIS Season Five|
|Bury Your Dead ♦ Family ♦ Ex-File ♦ Identity Crisis ♦ Leap of Faith ♦ Chimera ♦ Requiem ♦ Designated Target ♦ Lost and Found ♦ Corporal Punishment ♦ Tribes ♦ Stakeout ♦ Dog Tags ♦ Internal Affairs ♦ In the Zone ♦ Recoil ♦ About Face ♦ Judgment Day Part 1 ♦ Judgment Day Part 2|