The other brig. Boomer and Tyrol sit at opposite ends of their cell. Boomer guesses that Tyrol hates her. Tyrol doesn't reply. She says she's sorry he got dragged into her mess. She says, "What we had--" Tyrol finally speaks: "Was nothing. Nothing. You're a machine; I'm not." Boomer says that she knows how she felt. With her hands? She says that she never meant to hurt him. Then we hear Baltar's voice, and the camera swings up as the two armed guards let him into the cell.

Baltar is wearing a freshly starched lab coat and latex gloves. After closing the cell door, he tells the guards, "I'd like some privacy, please." He adds that he'll be fine, although the guards didn't ask. Okay, probably they didn't have any lines, but I like to pretend they don't really care what happens to Baltar. Exit the guards. Baltar tells Tyrol, "I'm here to determine whether you're a Cylon or not," and opens a little black bag. As Baltar pulls out a needle, he asks for Tyrol's arm. Tyrol obligingly snaps his robotic arm off at the shoulder, hands it over, then shouts, "D'oh! I fell for your devious ploy!" Okay, he just stands up and starts to roll up his sleeve, which takes some work, since he's still cuffed. From the peanut gallery, Boomer says that Baltar's test doesn't work. Baltar says, "The test works just fine," as he injects Tyrol with something. Baltar removes the needle and walks behind Tyrol, and a second later, Tyrol slumps down into Baltar's arms and is lowered to the floor. Boomer gasps, "Chief?" and hurries over as Baltar stands up. As Boomer tries to wake Tyrol up, Boomer explains that he lied to Boomer. "I covered up your true nature from the rest of the fleet for my own purposes." If by "purposes," you mean "deranged flailings at self-preservation." Boomer, who probably isn't listening, says that Tyrol isn't breathing. Baltar says that Tyrol is dying: "I can save him, if you tell me how many Cylons there are left in the fleet." Boomer doesn't know. Baltar thinks she does. "Buried deep down in that thing you call a subconscious, you know how many." Boomer wails that she doesn't know, and starts performing CPR on Tyrol. Baltar shouts, "In ten seconds' time, he'll experience complete brain-stem death! Now, how many?" He more quietly asks if she loves Tyrol, and says that only she can save him. Baltar looks at his watch and starts counting down: "Ten, nine..." Boomer starts fumbling in the medical bag Baltar brought in, and Baltar kicks it across the cell. He asks again, "Do you love him, Sharon?" Boomer gasps, "Eight! There are eight!" Baltar immediately pulls another syringe out of his pocket and rushes over to inject the magic potion into Tyrol's neck. Tyrol gasps and jerks up, and Boomer hurries over to hold his head. I can't quite decide about all this, because surely Baltar realizes that Boomer was highly motivated just to pick a number there. Right? So does Baltar have some reason to think this stress test works? Or was he just curious about what would happen?