Wayne clearly cannot believe his brother is this stupid. But Barney has them all posing as if for picture, saying it's "like three of the same guy." And now Barney gets why he was always so awesome at basketball. "Guys, I'm black!" He runs to get his camera, and Wayne explains that Barney's clearly not taking it so well that he didn't meet his real dad today. Sam says he only knew Loretta for a couple months, and when he found out about Wayne three years later, Loretta made it clear she didn't want him in Wayne's life, but he always wanted to meet him. Ted's like, "Wait. Sam only knew Loretta for a couple of months. Barney and Wayne are two years apart. Sam couldn't possibly be Barney's father." Robin sends Liz a pretend text: "He's also quite the detective."
Marshall suggests that they let Barney believe Sam's his father for today, since he's already been through a lot. "Can't we just let the guy be black for a day?" Barney comes back with his camera and asks Ted to capture the moment. Barney's like, "Man, I thought I was a light-skinned Caucasian. But in truth, I'm a really light-skinned African American." Then he talks about how hard it is, as a black man, to hail a cab in New York. They all go inside, where Sam and Wayne play piano and sing Stand By Me. Barney gets up and tries to sing along with them, but he's clearly off from their rhythm, so Lily keeps dragging him away.
Outside, Robin and Ted discuss the weird day when Robin's phone beeps. She tells Ted it's Liz, who still wants to meet him. Ted wonders why a "10" would still want to meet him; did Robin oversell her, too? Robin doesn't answer, and says she didn't specify which scale Liz is a "10" on, and that she, in fact, does look like a movie star: Robert De Niro. "But, like, super buff, like in Cape Fear." Wayne and Sam are on the front porch now, with Barney running around the yard, all, "Dad, look how fast I can run." Wayne shows his dad a picture of his son, Eli, on his cell phone.