The episode manages to do something that one wouldn't think was possible: It makes us feel for Big Jim—well, at least for a short period of time. This is due mostly to Dean Norris' incredible acting abilities. Big Jim explains to Pauline that he thought her death was his fault and that he left her art studio untouched because it was his way of keeping her alive. Realizing that her only way of getting Junior out safely is to make good with Jim, Pauline lies to Big Jim and says she came back for both Big Jim and Junior. Big Jim tells her that the Dome has made him a changed man (only if he means for the worse), and the fact that he truly believes that is funny. Pauline definitely isn't buying it, but nonetheless, she agrees to go along with Big Jim's plan of getting the whole family back together once they are outside the Dome.
(Lyle still hasn't shown up in Chester's Mill after coming through the portal with the rest of the Zenith crew. He's either dead, trapped between Zenith or Chester's Mill, or is going trying to be the champion of Chester's Mill's game of hide-and-seek).
After catching Julia and Rebecca up on what happened to him in Zenith, Barbie decides that the best plan is to use the egg as leverage to get the people out of the town. They decide to send Julia first and to make a deal with Don and his goons: If he gives them safe passage to Zenith, Barbie will come through the portal in the tunnel last and hand over the egg. There are a couple problems with this plan: First, Big Jim tried this already and the soldiers did not go for it, but Barbie and Julia don't know that, so we'll let that go. The other problem is that Melanie doesn't want to give up the egg.
In an attempt to convince Melanie to go along with their plan, Barbie pulls her aside and tells her about the memory he remembered when he came through the Red Door. In their exchange, we find out that Melanie is Barbie's half sister. Don had an affair with Melanie's mother years before Barbie was born and Melanie's mom brought Melanie to their home so that she could meet Barbie before they left Zenith. (This all sounds a bit too Jack and Claire for my liking, but whatever). Also, cudos to Under the Dome for pulling off this twist and not telegraphing it. Anyway, their conversation convinces Melanie to at least consider their plan of handing the egg over to Don.
Big Jim eventually finds out about Julia and Barbie's plan and convinces them to let him go through the portal first. He's convinced that he's the right person to negotiate with them because of his years as a car salesman... because sure. In another laughable moment, Big Jim is sure the plan will work as the soldiers wouldn't dare detain all of the Chester's Mill residents because this is still America (jokes!). Eventually, Barbie and Julia give into the plan because it means that neither one of them has to risk being detained by Don and used as leverage.
While this is going on, Pauline starts having intense visions again when the Egg starts "screaming," and we get to see her in full Isaac Mendez mode as she begins painting what she sees. Big Jim comes in during her episode to tell her the great news, but she's too busy painting to hear and pushes him away. Convinced he's doing what he needs to do protect her, Big Jim locks her in her studio and goes to find the egg. (Big Jim has a funny way of showing Pauline that he's changed. Didn't trying to lock her away for her own good lead to her faking her death already?) Anyway, Big Jim hears the egg screaming in the underground shelter, and when he goes down and touches it, it shocks him and knocks him out.
NEXT: Big Jim does a bad and stupid thing.