Samantha returns to Route 66 in Luther, Oklahoma, visiting the Threatt Filling Station, a historical safe haven for Black motorists. In Oklahoma City, she meets "neon Queen" Kathy Reynolds and explores the First Americans Museum, the largest Indigenous cultural center. At Sid's Diner in El Reno, she enjoys Oklahoma's onion burger. Crossing into Texas, she visits the Devil's Rope Museum in McLean, learning how barbed wire tamed the West. In Amarillo, she admires jewelry from Cadillac Ranch and sees the buried vintage caddies. In Adrian, Texas, the halfway point, she discovers the best pies. In New Mexico, she finds a vintage, unpaved stretch of Route 66, promising more adventures ahead.