4:42 AM. Mark hands the baby to Susan and instructs her to "bag him." The sheet covering Jodi's abdomen and crotch is completely sodden with blood. Mark calls Carter over and instructs him to follow Mark's hand into Jodi's gaping incision, and to find Jodi's aorta. (Mark's helpful hint? "It's pulsing." Thanks, chief.) Carter finds it. Mark tells Carter to push down on it and not to let go. Mark moves toward the plexiglass crib where Susan, Carol, and some other anonymous nurse are working on Jared; Chen quavers, "Is he alive?" Mark pulls over a tray of instruments and orders everyone out of the way (because that's worked so well so far), and announces that he's going to intubate. Susan gives him a "sure, why not make another risky decision that could well make matters worse?" look, but doesn't contradict him. Mark orders a "heel stick of glucose." After a few moments during which it's clear that pretty much no one knows what they're doing, Mark hesitantly declares, "I think I'm in." He tells the anonymous nurse to bag Jared; that seems to do the trick, and Jared's chest expands as a result of the bagging. Mark orders a drug. Susan says Jared's "got no veins," and Mark tells her, "Hyperventilate him; I'm going to try an umbilical line." In the hall, Sean watches silently. Cut to Jodi's face; she's still out cold. Mark makes with the umbilical line. Susan marvels, "Oh my god, how can you see?" Mark admits that he doesn't know. More blood orders. More drug orders. Working on the baby is evidently still a challenge. Suddenly, Susan exclaims, "He moved! I swear to god, he moved!" After a moment, she adds that "he's pinking up." That's all Mark needs to move along; he changes gowns and returns to Jodi. Lydia gives him Jodi's vitals. Susan calls out that the baby's much improved.