C.T. travels with Victor and Terry to the town of Palenque. There, he meets Terry's daughter, Quiche, who is a couple of years younger than C.T. She takes him on a tour of the nearby Mayan ruins, including the tomb of Pakal, one of the ancient kings of Palenque. Later on, Victor shows C.T. how his research team is laying out a grid to make a map of the ruins. With the help of Victor, Terry and Quiche, C.T. begins to learn about the history of the Mayan people and some of the unknown mysteries surrounding this ancient civilization. He also learns about looters who have stolen many of the artifacts from the ruins. It's suspected that Quiche's dad, who was also an archaeologist, may have been killed by a looter, 8 years earlier. Expedition 2B - "Sweating it Out": Hosted by Ben Affleck. Ben visits with Dr. Roger Hubbard, who is the heat expert at the Institute for Environmental Medicine in Natick, Massachusetts.