Thomas and Sophia's car (driven by someone) pulls up to a building. They take an elevator down to a mysterious underground concrete bunker. A technical gizmo rises out of the floor, and Thomas enters in a security code. He actually enters it three times, because it's not accepted the first two times he tries. This is how the show intends to convey to us that he's nervous. Then a cube of goo appears, and Sophia reaches inside it to bring out a glowing cylinder. This is the Key Module, which is apparently still viable. If so, it's the first viable thing on the series! Anyway, Sophia turns and sees that Thomas is pointing a gun at her.
Thomas demands the key, and Sophia hands it over. Then he tells her to turn around, but she won't do it. She wants him to look her in the eyes when he pulls the trigger, but he claims that that will just make it easier. He tells her she's irrelevant, and she says those are Isabel's words. She accuses him of choosing Isabel over her, and he claims to be choosing himself. He levels the gun, and she says he doesn't have it in him. And it appears that she considers that a serious character flaw. "Go ahead. Prove me wrong. Show me you have what it takes. Do it. Do it." He registers conflict, then sadness. Then he drops the gun and crumples up in the corner, crying. She tells him she loves him. Weird scene, man.
Sean and Leila are parked directly across the street from Abby's place. They're right out in the open, which strikes me as being kind of the opposite of "covert." Abby's family loads their suitcases into the car, and Sean says they have to follow them. When the family pulls out of the driveway, Sean and Leila turn their faces away in a hilariously ineffectual attempt to vanish. By the way, Sean and Leila are in a different car from last week. No idea where it came from. Oh! And that goon from Mr. Dempsey's office is also out on the road, so I guess he flew to Tulsa somewhere in there. I'm really starting to wonder if the people who write this show have ever gone on any sort of a long road trip, since they don't seem to have any idea how big this country actually is.
The car with Abby's family pulls into a gas station, and Sean also parks. The father goes into the convenience store part, and the mother takes Abby to the restroom. Leila gets out and runs after them. Sean sees the goon park and get out of his car.
Leila enters the restroom and begs the mother to let her talk to Abby. The mother is reluctant, but Abby steps out of the stall and says that she wants to talk to Leila. Abby looks old, which Leila doesn't appear to find odd. The mother says that Abby was questioned by the police, but they couldn't get anything interesting out of her, so they sent her back to her family. This does not match up with Abby's stream of useful information, which starts with the confirmation that Samantha got there a couple of days before Abby ran away. Samantha was still normal at that time, but after a few days, all the girls started to look old. So Leila knows that Abby looks weird; she just didn't show any reaction to it. Abby says that she was injected with stuff, which makes me wonder if the police thought to have her thoroughly tested. Couldn't she be a biological weapon of some sort?