When Don and David enter the room with the unconscious Colby, David takes the syringe out of Colby's body and tells Don the syringe is full of potassium chloride. In the scene before, Mason Lancer drew the potassium out of a vial into the syringe while standing near the table. David couldn't have known what was in the syringe, as Mason had several chemical solutions in vials on the table and David only looked at the syringe, even before he had the chance to glance at the table.
When Lancer is preparing Colby's third injection, he's not wearing rubber gloves, but the close-up shows hands with gloves.
When Don is explaining the math to Charlie, Larry and Amita, he points with his right hand to the wall. In the very next shot, he is pointing with his left hand.
When Don enters the scene where Colby and Dwayne escaped, he pulls off his sunglasses. In the back shot, he's still wearing them.
Lancer's infrared car markings are "KL6HX9".
When David gets mad at Colby for being a spy in "Janus List," he says, "You're not a spy, you're a damn traitor." Yet, in "Trust Metric," when Don is reviewing the tapes of Colby's interrogation, David says "You're not a damn spy, you're a traitor."
Math used in this episode:
Set Covering Deployment
This episode picks up five weeks after "The Janus List."
Larry is seen wearing a wedding ring in the last scene, but he is not married.
"Trust Metric" is a term used by psychologists to determine the measure of trust one person has of another.
16 MILES FROM SHORE
Carter: Granger, don't do this. It's not worth it for some secrets nobody will care about six months from now.
Colby: Dwayne, I really wish somebody else had pulled me out of that fire.
Colby: 'Cause I hate owing you.
Mason Lancer: Do they know my name?
Colby: Your name, your dog's name, your grandmother's name. Everyone knows everything.
Alan: Now that's the test isn't it: how you deal with a really close friend that lets you down.
David: Mr. Eppes, he did not just forget to pick me up from the airport. He sold out his country.
Alan: I don't want to get all 1960's on you, but I've heard that accusation tossed around a lot in my lifetime. Truth is, it's never that simple.
Charlie's grabbing an icecube out of Megan's drink.
Megan: Yes, I was done with that.
David: (About Colby) I still don't know who he is. I didn't know him when he was a spy. Now he's some guy who pretended to be a spy, pretended to be my partner.
Colby: You don't trust me. I get that, all right? You have to understand that I trust you.
Dwayne: 'Member when I pulled your ass out of that Humvee?
Colby: Yeah. You remember why?
Dwayne: Sometimes I think the burns are payment enough for the things that we've done. Other times I know they're not.
Colby: What were you thinking trying to shoot it out with cops?
Dwayne: I was thinking I'm gonna die before I go back to jail.
Charlie: Don, you have a big ego.
Charlie: No, you have a ginormous ego.
Larry: Charles, the monks do not appreciate FBI agents knocking on their doors especially during morning contemplation.
Don: (About Dwayne Carter) Man! Colby just keeps owing this guy!
Alan: Isn't there a mathematical term for "removing the clutter"?
Charlie: Yeah, we call it "removing the clutter."
The Netherlands: March 10, 2008 on Veronica
Germany: March 30, 2008 on SAT 1
Czech Republic: July 28, 2009 on TV Nova
Finland: January 14, 2011 on Sub
Slovakia: February 14, 2011 on JOJ
Cheryl Heuton and Nicolas Falacci's creator credits move back to their position directly after the series title with season four.
This episode was rated TV-PG (LV) in its first network broadcast.
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