Highlights from the Twentieth Episode of Season 2 of Blue Bloods

Danny and Jackie are assigned to protect a key witness in a Russian mob trial, but when an attempt is made on her life, they realize there is a leak on the task force.

Working Girls

1. Working Girls

Danny (Donnie Wahlberg, left) and Jackie (Jennifer Esposito, right) are assigned to protect Sophia (Alexia Rasmussen, center), a key witness in a Russian mob trial, but when an attempt is made on her life, they realize there is a mob informant on the task force. Photo: John P. Filo/CBS ©2012 CBS Broadcasting Inc. All Rights Reserved.
Key Witness

2. Key Witness

Danny (Donnie Wahlberg) and Jackie (Jennifer Esposito, right) are assigned to protect Sophia (Alexia Rasmussen, center), a key witness in a Russian mob trial, but when an attempt is made on her life, they realize there is a mob informant on the task force. Photo: John P. Filo/CBS ©2012 CBS Broadcasting Inc. All Rights Reserved.
Mob Trial

3. Mob Trial

Danny (Donnie Wahlberg) and Jackie are assigned to protect a key witness in a Russian mob trial, but when an attempt is made on her life, they realize there is a mob informant on the task force. Photo: John P. Filo/CBS ©2012 CBS Broadcasting Inc. All Rights Reserved.
Caption This!

4. Caption This!

Danny (Donnie Wahlberg) and Jackie (Jennifer Esposito, right) are assigned to protect a key witness in a Russian mob trial, but when an attempt is made on her life, they realize there is a mob informant on the task force. Photo: John P. Filo/CBS ©2012 CBS Broadcasting Inc. All Rights Reserved.
Protection Plan

5. Protection Plan

Danny (Donnie Wahlberg) and Jackie are assigned to protect a key witness in a Russian mob trial, but when an attempt is made on her life, they realize there is a mob informant on the task force. Photo: John P. Filo/CBS ©2012 CBS Broadcasting Inc. All Rights Reserved.
Lock and Loaded

6. Lock and Loaded

Danny (Donnie Wahlberg) and Jackie are assigned to protect a key witness in a Russian mob trial, but when an attempt is made on her life, they realize there is a mob informant on the task force. Photo: John P. Filo/CBS ©2012 CBS Broadcasting Inc. All Rights Reserved.
Winning Caption:

7. Winning Caption: "I know that technically, this should be a foot chase, but..."

Danny (Donnie Wahlberg) and Jackie are assigned to protect a key witness in a Russian mob trial, but when an attempt is made on her life, they realize there is a mob informant on the task force. Photo: John P. Filo/CBS ©2012 CBS Broadcasting Inc. All Rights Reserved. Winning caption by Michele M.
Crime Scene

8. Crime Scene

Danny (Donnie Wahlberg), Jackie (Jennifer Esposito) and Erin (Bridget Moynahan) survey the crime scene when a witness in a Russian mob trial is murdered. Photo: John P. Filo/CBS ©2012 CBS Broadcasting Inc. All Rights Reserved.
Survey

9. Survey

Danny (Donnie Wahlberg), Jackie (Jennifer Esposito) and Erin (Bridget Moynahan) survey the crime scene when a witness in a Russian mob trial is murdered. Photo: John P. Filo/CBS ©2012 CBS Broadcasting Inc. All Rights Reserved.