Wait. What time is it? 30, why? She is about to die. Who? Lori. He's gonna kill her? What?...

Tree Gelbman: Wait. What time is it? Gregory Butler: [looks at his watch] Almost 21:30, why? Tree Gelbman: [fearfully] She is about to die. Gregory Butler: Who? Tree Gelbman: Lori. He's gonna kill her? Gregory Butler: What? Tree Gelbman: Listen to me. You need to stop her from going down to the OR. Gregory Butler: [lying] I'm sorry. I don't know who you're talking about. Tree Gelbman: [sharply] Oh, really? Well, maybe your wife does. [Gregory looks aghast] Tree Gelbman: Go. [Gregory shakes his head] Tree Gelbman: Go! [Gregory rushes out of the room. Tree removes the catheter from her hand and exits. She sneaks past nurse Deena at the nurses' station and rushes to Tombs' room. As the security guard comes out of the restroom, Tree hits him on the end with a telephone. The guard collapses, unconscious. Tree bends over him and takes his gun] Tree Gelbman: Sorry... [Tree takes the elevator to the floor of the OR. She moves stealthily along the corridor. A nurse appears, and Tree quickly hides in a doorway until she is out of sight. On her way, Tree suddenly notices blood drops on the floor. She cautiously enters the OR, ready to open fire. Following the trail of the blood drops, she moves the curtain. Lori's dead body lies on the floor in a puddle of blood] Tree Gelbman: [sorrowfully] Lori... [a Bayfield Baby masked person, armed with a knife, steps behind Tree. She senses it in time, turns back and shoots twice. The masked person collapses. Smiling bitterly, Tree approaches the masked person, removes the mask, revealing Tombs' face] Tree Gelbman: [snarls] Who set you free? [Tombs lips move, blood oozes from his mouth, but no words come out. He dies. Suddenly, a curtain moves, and a second Bayfield Baby masked person appears behind Tree. Tree senses the second assailant too late. It grabs Tree, one hand around her throat and the second holding her right wrist, trying to make her drop the gun. Tree struggles, but in vain. She realizes it is the real murderer, who used Tombs as a cover up] Tree Gelbman: [yells] Who are you? [the assailant does not answer. Tree notices several cylinders of flammable gas a few feet away] Tree Gelbman: [enraged] Fine. I go, you go! [Tree straightens her hand and shoots at the gas cylinders. They explode in flames. Tree and the masked person are engulfed with flames. Tree awakes in Carter's bed, as usual] Carter Davis: Oh, hey. You're up. I wasn't sure if you wanted to sleep in or not. Tree Gelbman: [grumbles] I am so done with this shit... [Tree gathers the group in the lab and explains the situation to them. Then she draws on the board the equations she has been memorizing in the past days]