As the Race to the Center of the Earth heats up, teams are pushed to the limits of both mind and body. In Canada, a snowstorm puts the team in a bind. In Vietnam, one adventurer will have to face her fears. In South America, the fabric of the team will be tested. And in Russia, the team endures the longest day of the course.

Cast: Chris Payne Gilbert, Chris Nelson, Jeremy Conkling, Angelina Fraize, David Bacon, Mindy Murphy, James Batey, Jay Wyatt, Sierra Knott, Autumn Fryer, Jon Irwin, Paul Montague Jr., Marilina Kim