George Eads is returning to \"CSI\" after a three-month hiatus and will be seen in the Nov. 20 episode of the Las Vegas-set police drama, TVGuide.com reported. Eads, one of the show\'s last remaining original cast members, took a leave of absence in August after arguing with one of the writers about the creative direction of his character. TVGuide.com said his on-screen absence this season will be addressed in the upcoming 300th episode when his character is chosen to receive special training in Quantico, Va.