Watch NCIS Season 4 Episode 9: Twisted Sister Online

	IMDB Rating: 8.2/10 from 306 votes
	Release: 2006 / NCIS / Season 4 / Episode 9
	Genre: Action \| Comedy \| Crime
	Director: Terrence O'Hara
	Stars: Mark Harmon, Michael Weatherly, Cote de Pablo
	Synopsis: At 02:30 Tim's younger sister, Sarah, covered with human blood, shows up at the door of his pad, saying that she thinks that she's killed someone; he sends the office an e-note, saying that he's sick, then he starts to look into it. Gibbs and the rest of the gang investigate the death of a Navy seaman, from USS Enterprise, on the campus of the same university where Sarah attends; Ziva finds 10 more bodies. A phone call becomes troublesome for Tim, Gibbs, and Sarah; Tim feels strong conflicts of interest and of loyalty. Abby finds the weapon, and Gibbs questions Sarah. Abby makes a crucial discovery, then the gang solve the case and nab the people responsible.

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