NCIS, NCIS: HAWAI'I AND NCIS: LOS ANGELES

RETURN MONDAY, JAN. 9; 8/7c, 9/8c and 10/9c; CBS

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A DREAM TEAM come true! For the first time ever, all three NCIS squads unite to solve a crime, and this one is personal: Agents from the three bases of operation-Washington, D.C., Los Angeles and Pearl Harbor-have gathered in the nation's capital for the retirement of their much loved Federal Law Enforcement Training Center professor, who, shockingly, commits suicide. Or was it murder? "[They learn] he had a secret dark past," says executive producer Christopher J. Waild, "and it's connected to some of our main characters." He previews the three exciting hours.