prime suspect; only to reveal that he has been sick for a while and tried to keep it quiet. Tony has described McGee's family situation as akin to the film The Great Santini – a "military brat" brought up in a strict household. In "The Penelope Papers" and several other episodes, the admiral admitted to Tim his regret in not spending as much time as he should have with his family. McGee's father passes on in Season 12. Notable episodes Some episodes provides particular insights into the McGee character: "Witness": McGee must investigate when a single woman said she witnessed a murder. "Probie": During a protection mission, McGee kills a policeman. He takes it pretty hard, seeing as he believed the policeman was a drug dealer trying to kill him when in fact he was an undercover DC Metro officer. "Twisted Sister": McGee's sister Sarah shows up at McGee's door, her hands bloodied and thinking she killed her ex-boyfriend, a Navy Petty Officer. McGee hides evidence of his sister's supposed crime and launches a secret investigation into the affair. "Cover Story": A man is inspired to commit murder by McGee's book; McGee is pressured to determine where the murderer will strike next. "Caged": McGee is taken hostage in a women's prison. "Defiance": NCIS is assigned to protect the daughter of an important politician whose attempted assassination resulted in the death of a U.S. Marine. Aside from the sparks flying between her and McGee, Adriana is only interested in keeping her independence. Things take a turn for the worse when she is supposedly kidnapped. "Kill Screen": A dead Marine's girlfriend becomes a key witness to a murder investigation, and McGee's computer skills become important in solving the murder. "The Penelope Papers": McGee's grandmother Penelope Langston is a person of interest, and almost a victim, in a murder investigation. "Squall": McGee's father (a four-star admiral) is seen for the first time and their complicated past is revealed. "House Rules": McGee struggles with his relationship with his father by type-writing a letter to him. At the end of the episode, it is revealed that McGee's father has died of cancer, and McGee places the letter in his casket. "Something Blue": McGee marries Delilah, and Gibbs gives McGee the watch that his father gave him when he got married. "Ready or Not": During a hostage situation in the hospital that NCIS and McGee end