Highlights from the Fifth Episode of Season 4 of NCIS: LA

Pictured: Eric Christian Olsen (LAPD Liaison Marty Deeks) with “Chaucer” (Ramen, left). When a CIA agent who worked with Sam Hanna over eight years ago seeks his help and is soon found dead of an apparent suicide, Hanna and Callen suspect foul play and a bigger conspiracy. Meanwhile, Deeks finds his inner “dog whisperer” with Kensi as the two go undercover and enter a dog show with a prized poodle. Photo: Robert Voets/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

Pictured: Eric Christian Olsen (LAPD Liaison Marty Deeks) with “Chaucer” (Ramen, left). When a CIA agent who worked with Sam Hanna over eight years ago seeks his help and is soon found dead of an apparent suicide, Hanna and Callen suspect foul play and a bigger conspiracy. Meanwhile, Deeks finds his inner “dog whisperer” with Kensi as the two go undercover and enter a dog show with a prized poodle. Photo: Robert Voets/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

“Chaucer” (Ramen, front) the poodle teaches LAPD Detective Deeks (Eric Christian Olsen, back) some new tricks when he goes undercover at his first dog show as part of an investigation. Photo: Robert Voets/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

Pictured: Eric Christian Olsen (LAPD Liaison Marty Deeks) with “Chaucer” (Ramen, left). When a CIA agent who worked with Sam Hanna over eight years ago seeks his help and is soon found dead of an apparent suicide, Hanna and Callen suspect foul play and a bigger conspiracy. Meanwhile, Deeks finds his inner “dog whisperer” with Kensi as the two go undercover and enter a dog show with a prized poodle. Photo: Robert Voets/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

“Chaucer” (Ramen, front) the poodle teaches LAPD Detective Deeks (Eric Christian Olsen, back) some new tricks when he goes undercover at his first dog show as part of an investigation. Photo: Robert Voets/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

“Chaucer” (Ramen, left) the poodle teaches LAPD Detective Deeks (Eric Christian Olsen, right) some new tricks when he goes undercover at his first dog show as part of an investigation. Photo: Robert Voets/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

“Chaucer” (Ramen) the poodle teaches LAPD Detective Deeks (Eric Christian Olsen, left) and Special Agent Kensi Byle (Daniela Ruah, right) some new tricks when he goes undercover at his first dog show as part of an investigation. Photo: Robert Voets/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

Pictured: Barrett Foa (Tech Operator Eric Beale). When a CIA agent who worked with Sam Hanna over eight years ago seeks his help and is soon found dead of an apparent suicide, Hanna and Callen suspect foul play and a bigger conspiracy. Meanwhile, Deeks finds his inner “dog whisperer” with Kensi as the two go undercover and enter a dog show with a prized poodle. Photo: Monty Brinton/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

Pictured: LL COOL J (Special Agent Sam Hanna). When a CIA agent who worked with Sam Hanna over eight years ago seeks his help and is soon found dead of an apparent suicide, Hanna and Callen suspect foul play and a bigger conspiracy. Meanwhile, Deeks finds his inner “dog whisperer” with Kensi as the two go undercover and enter a dog show with a prized poodle. Photo: Monty Brinton/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

Pictured: LL COOL J (Special Agent Sam Hanna). When a CIA agent who worked with Sam Hanna over eight years ago seeks his help and is soon found dead of an apparent suicide, Hanna and Callen suspect foul play and a bigger conspiracy. Meanwhile, Deeks finds his inner “dog whisperer” with Kensi as the two go undercover and enter a dog show with a prized poodle. Photo: Monty Brinton/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

Pictured (L-R): Chris O'Donnell (Special Agent G. Callen) and LL COOL J (Special Agent Sam Hanna). When a CIA agent who worked with Sam Hanna over eight years ago seeks his help and is soon found dead of an apparent suicide, Hanna and Callen suspect foul play and a bigger conspiracy. Meanwhile, Deeks finds his inner “dog whisperer” with Kensi as the two go undercover and enter a dog show with a prized poodle. Photo: Monty Brinton/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

Pictured: Chris O'Donnell (Special Agent G. Callen). When a CIA agent who worked with Sam Hanna over eight years ago seeks his help and is soon found dead of an apparent suicide, Hanna and Callen suspect foul play and a bigger conspiracy. Meanwhile, Deeks finds his inner “dog whisperer” with Kensi as the two go undercover and enter a dog show with a prized poodle. Photo: Monty Brinton/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

Pictured (L-R): LL COOL J (Special Agent Sam Hanna) and Barrett Foa (Tech Operator Eric Beale). When a CIA agent who worked with Sam Hanna over eight years ago seeks his help and is soon found dead of an apparent suicide, Hanna and Callen suspect foul play and a bigger conspiracy. Meanwhile, Deeks finds his inner “dog whisperer” with Kensi as the two go undercover and enter a dog show with a prized poodle. Photo: Monty Brinton/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.