Martha's been doing some investigating on her own. She called Landon's DCS caseworker, and tells House that she figured out why Driscoll started being nicer to Landon -- and, she admits, it had nothing to do with what she said to him. Meanwhile, House is just like, "wait, what? What patient? I haven't been paying attention to my job all season now." Martha comes up with an excuse and wheels Landon and his bed out of the room so House can speak with Driscoll privately. House opens by saying Landon looks just like his mother, he assumes, since he clearly doesn't look like his father. Mostly because Landon is black and Driscoll is white, but House (well, Martha, actually) figured out that Driscoll is his long-lost father based on the fact that the DCS worker told them that Driscoll paid for Landon's stay at the boot camp, unbeknownst to Landon. I get that biracial kids can look more like one race than the other, but if they were going to go this route, why not cast a kid who looks like he could be biracial or actually is biracial? Because Tyler James Williams, who plays Landon, is not. So it's a little hard to believe, but whatever. Driscoll admits that House is right, but begs House not to tell Landon.
Back in the meeting room, House is a wee bit annoyed that they wasted all that time trying to figure out a link between Driscoll and Landon because Driscoll didn't just tell them about their genetic one. Now it might be too late, as they aren't responding to the botulism treatment and Landon is having seizures. Foreman doesn't think the fact that Driscoll and Landon are related is medically relevant either, pointing out that genetic conditions surface based on relatives' age, not proximity. Chase says there could be some kind of trigger setting off whatever genetic condition father and son have, saying the fact that they're related "can't be a coincidence." With that, he gets his own Epiphany Face. But it's not a diagnosis, so House tells him to sit back down and re-focus. When the Cottages come up with a new diagnosis that it won't be anyway, House lets Chase go off and confront his Faceplace hacker.