Investigação Criminal

"Nature of the Beast" -- After spending months tracking down his target, Tony (Michael Weatherly, left) is left with the blood of an NCIS agent on his hands and it's up to Gibbs to help him put the pieces of the puzzle together, on the ninth season premiere of NCIS, Tuesday, Sept. 20 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Also pictured: Sarah Jane Morris as NCIS Special Agent Erica Jane "E.J" Barrett Photo: Cliff Lipson/CBS ©2011 CBS Broadcasting Inc. All Rights Reserved

"Nature of the Beast" -- After spending months tracking down his target, Tony (Michael Weatherly, left) is left with the blood of an NCIS agent on his hands and it's up to Gibbs to help him put the pieces of the puzzle together, on the ninth season premiere of NCIS, Tuesday, Sept. 20 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Also pictured: Sarah Jane Morris as NCIS Special Agent Erica Jane "E.J" Barrett Photo: Cliff Lipson/CBS ©2011 CBS Broadcasting Inc. All Rights Reserved

"Nature of the Beast" -- After spending months tracking down his target, Tony is left with the blood of an NCIS agent on his hands and it's up to Gibbs (Mark Harmon, right) to help him put the pieces of the puzzle together, on the ninth season premiere of NCIS, Tuesday, Sept. 20 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Also pictured: Rocky Carroll, left Photo: Sonja Flemming/CBS ©2011 CBS Broadcasting Inc. All Rights Reserved

"Nature of the Beast" -- After spending months tracking down his target, Tony is left with the blood of an NCIS agent on his hands and it's up to Gibbs to help him put the pieces of the puzzle together, on the ninth season premiere of NCIS, Tuesday, Sept. 20 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Pictured left to right: Sean Murray, David McCallum and Brian Dietzen Photo: Sonja Flemming/CBS ©2011 CBS Broadcasting Inc. All Rights Reserved

"Nature of the Beast" -- After spending months tracking down his target, Tony (Michael Weatherly, right) is left with the blood of an NCIS agent on his hands and it's up to Gibbs (Mark Harmon, left) to help him put the pieces of the puzzle together, on the ninth season premiere of NCIS, Tuesday, Sept. 20 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Photo: Sonja Flemming/CBS ©2011 CBS Broadcasting Inc. All Rights Reserved