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
Nature of the Beast

1. 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. Photo: Sonja Flemming/CBS
Pieces of the Puzzle

2. Pieces of the Puzzle

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. Pictured left to right: Sean Murray, Cote de Pablo, Brian Dietzen and David McCallum Photo: Sonja Flemming/CBS
Scott Wolf Guest Stars

3. Scott Wolf Guest Stars

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. Pictured: Guest star Scott Wolf Photo: Sonja Flemming/CBS
Ninth Season

4. Ninth Season

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. Pictured left to right: Sean Murray, David McCallum and Brian Dietzen
Season Premiere Photos

5. Season Premiere Photos

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.. Also pictured: Rocky Carroll, left Photo: Sonja Flemming/CBS
FBI Agent Casey Stratton

6. FBI Agent Casey Stratton

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, 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. Also Pictured: Guest star Scott Wolf, right Photo: Cliff Lipson/CBS
Winning Caption: Tony, get it together! We're being shot at, stop staring at my butt.

7. Winning Caption: Tony, get it together! We're being shot at, stop staring at my butt.

First look from "Nature of the Beast" featuring Tony and EJ's reunion. Winning caption by Megan K.
Nature of the Beast

8. Nature of the Beast

First look at Tony and EJ's reunion on NCIS.