Abby sits on a bench on the El platform, trying to put her cell phone back together. Jake walks up and hands her a piece of paper, saying it's the last of her materials on "Desensitization Reprocessing." Abby waves it off as some crazy stuff that Dubenko gave her. Jake tries to fix Abby's cell phone and says that he didn't miss work at all over the holidays. Abby doesn't respond, so he says he must have made quite an impression on her if she didn't notice he was gone for a week. He hands back the repaired cell phone. Abby says she remembers him, because of his beard. Jake says he went to Yellowstone and starts talking about how the whole thing is an active volcano that could blow at any second. I'm surprised Jerry Bruckheimer hasn't made a movie about that yet. Jake seems amused by the possibility that it could kill most of the residents of North America. Abby, happy to talk to someone who doesn't know about her kidnapping, looks amused as well. Jake continues to wax philosophical about life and Abby asks, "Are you high?" Heh. The train arrives, and Jake gets up to leave for work. He's all giggly, so he's either high or in love.
Neela takes Florence down to the morgue to see her grandson. Simultaneously, Pratt takes the other kid's parents to see him in the ICU. Surprise! They mixed up the families! So Florence's grandson is alive, and the other couple's son is dead. Oops.
Abby, still at the El station, gets a call from Haleh about a patient. Abby promises to be there in a minute, and heads back to work.
Back in the ER, Weaver is ripping Susan a new one about the mix-up with the gunshot victims. Susan tries to explain, and Luka helps, but Weaver still doesn't get how it could have happened. Susan blames it on "a massive communication failure" and Weaver tells her that it's her job to make sure people communicate. Susan sighs and takes full responsibility. Pratt says that they screwed up, and Neela adds that they didn't talk, and didn't check the board. Weaver asks who was in which trauma. Luka says that he, Neela, and Sam worked on the dead kid, and Susan says that she, Shane, Pratt, and Malarkey worked on the other one. Weaver confirms that there was no overlap in coverage, and Darlene speaks up and says that she was in both. Everyone looks at her and says, "Who are you?" Darlene says she put a name alert on the board. Susan wonders why she didn't say anything, and Darlene says that no one listens to her or even remembers that she was in the room.