Walter's examining Koenig's bloodwork, and finding there's no helium, nothing gaseous at all, no hydrogen or methane. But his white blood cell count is low, meaning a weakened immune system. Walter theorizes that whatever's making him float is also attacking his body's defences. "Whatever it is, I think the effects are wearing off," says Peter, lifting Koenig's arm, which floats gently back down again.
Olivia comes in with the news that they haven't found this guy in the system yet, but they traced the keycard to a warehouse in Allston, so Peter and Olivia are going on a little ride, which gives Walter a thrill and Peter asks him what's up. "Nothing. When your mother and I were courting, we used to take long walks in the park. But I can see for your generation that a drive to a warehouse would be just as enchanting," he says, making everyone giggle. Look, if you're getting stoned and waking up with Yoko Ono, I don't believe you're likely to call anything "courting" but never mind.
Over at a warehouse in, oh, let's say Allston, Dr. Krick shows up and uses his keycard -- we get a nice long look at it so we know it's the same as the one that was found on Koenig. As he strides through the warehouse, the other guy stands up. "What's happening to me?" he wails, and Krick looks and sees that he's bleeding from both eyes. Big deal! Same thing happened to me last time I switched contact-lens manufacturers.
So in the actual lab, Krick's working with some blue liquid and a Bunsen burner, with the floaty guy saying he doesn't understand, that Krick said if he got more of that stuff that it would be permanent. Krick says he's working on it: "You can't defy gravity without consequences. That's the problem," he says, and then tries to make Bleeding Eyes Murphy here feel better by giving him a pep talk about being a pioneer. "Men like you, your participation in this experiment will help him discover a way to eliminate the side effects."