The road-trippers take a much-needed meditative break in Yosemite National Park before continuing on to DEF CON, a Las Vegas conference that dispels some of their misconceptions about "hackers." Then it's off to Denver, where the team lets loose at Sphero, a robotics company that puts an emphasis on fun. In Chicago, 3D printer Dima Elissa encourages the team to embrace their unique identities.