Don, Megan, and David go over Colby's story. Megan got confirmation from D.C. that there is a Kirkland in CI, and he has been in North Hollywood for the last six weeks. David scoffs that Colby could have sold that name to the Chinese. Don sends Megan and David to talk to Kirkland, but orders them to keep it amongst themselves. David wonders aloud that they aren't going to report contact with an escaped convict. Don just wants to figure out what Colby has to gain by contacting them. "Because you think he could be telling the truth," Megan states. Charlie, feeling he's been too long left out of the action, asks if any of them knows about trust metrics. Megan does, because it's used in psychology to measure how much a member of a group is trusted by other members. David blusters, "We can't trust anything Colby says!" Charlie says, "It's not an either-or proposition if we employ a fuzzy system." Your hair's a fuzzy system. Charlie jams his hand into Megan's glass of iced tea and grabbles out the ice cubes. The guy has just no sense of social niceties, does he? He slammed Edgerton's fiber muffin on the ground, he poured water all over Megan's popcorn lunch when she was eating for two, and now this? Charlie, is there any harm in, I don't know, asking before you contaminate people's food? Just so you all know, not all mathematicians are that uncouth or socially stunted.

"Yes, I'm done with that," Megan says with distaste. Not even hearing her, Charlie goes on with his mathmobabble, explaining how an ice cube can be described as "wet," "hard," or "cold," but none of it matters without a basis for comparison. They use fuzzy logic to create a range of those states, and assign values accordingly. By the same token, a person's honesty is not absolute, because everyone lies for various reasons and to varying degrees. He offers to create a "probabilistic statement" and they can use it if they want. David wonders if Charlie already has enough to work on since he's trying to figure out C&C Convict Factory's escape route. Well, it's good that you asked, David, because Charlie's mathmobabble "yielded a very interesting by-product." Don takes a look at the probable escape routes Charlie developed, and decides C&C could have used the subway. Charlie protests that there's a lower probability of that because there are cops at the stations. "Yeah, but not on the trains," Don announces. He muses some more on the route, and runs out of the room. Charlie looks stunned and a little proud. Larry comments, "Well, well, Don has gotten much better with the math." Outsmarting the math is more like it. And also? Couldn't Don have heard the extra-loud train noise over Colby's cell? Amita comments that Don puts on a good game face, but he's clearly hurting. Charlie points out that on top of Colby's betrayal, now Don has to deal with this new facet of the case. Larry hepth-mobabbles about quarks and how the human mind is subject to random fluctuations.