Four teams across the world compete in the ultimate adventure race for $1 million. Teams of co-workers, rock-climbers, cops and teachers are spread out across the world and racing toward the same finish line. As the race begins, teams must work together to win. For one team, a steep challenge on day one will test their mettle.

The race continues, and for each team it will take physical and mental strength to endure. In Russia, car troubles jeopardize the team's lead in the competition. In Canada, relationships are put to the test. In South America, the team must make a risky decision. And Team Southeast Asia will face their most exhausting challenge yet.