Through the darkness, Reed says ominously, "I think I just saw something off the starboard bow." "What?" T'Pol demands. "I don't know," Reed says. "It might have just been the sensors going down." A view above the ship shows all the lights extinguishing. Inside, we are treated to infrared vision as the Mottled Aliens making their way through the ship's innards. One, interestingly enough, is walking upright, while the other two are crawling along the ceiling and wall of the corridor. It's a deliciously creepy if nonsensical effect. Back in sick bay, Klaang continues to shout through the dark as Cpt. Quantum, Dr. Phlox, and some random officer switch on flashlights. Do you think they still call them "flashlights" in the 22nd century? Klaang shouts on. "Do you wanna tell him to shut up?" Cpt. Quantum tells Hoshi. "SHUT UP!" she screams at him. Poor confused Klaang pauses a moment, then continues on his tirade. "We may have to sedate him," Cpt. Quantum tells the doctor, and then says he's going to the bridge. Hoshi's flashlight flashes over a Mottled Alien, whose image seems to disappear into the bulkhead. "Captain," she gasps out. Oh, great -- now no one's going to believe her because she's already been acting jumpy. "What?" Cpt. Quantum asks, swinging away from the door. "There's someone here," Hoshi says between clenched teeth. Cpt. Quantum shines his flashlight over the bulkheads and looks up a ladder. There's a rustle, and everyone turns around. The tension builds even more with more untraceable sounds. Cpt. Quantum shines his beam on the ceiling and catches sight of a Mottled Alien scuttling above them. "Crewman!" the Captain shouts out. The crewman fires without success. "Suliban," Klaang says, straining at his braces. A figure drops from the ceiling behind the crewman, who whips around as another figure rushes at him, knocking the gun from his grip. There's a tussle until Cpt. Quantum picks up the dropped gun and fires at the Mottled Alien. The body lands next to Hoshi, who cries out. Klaang continues to struggle at his straps, and from his vantage point we see a Suliban dropping from the ceiling on top of him. Then there's silence. I don't mind telling you that I let out a bit of a shriek when the Suliban fell. It was really disturbing. "You all right?" Cpt. Quantum asks the crewman, helping him up, completely unaware what Klaang's silence means. The lights flash on and show the empty bed.