Part 1 of 2. The fifth season opens with a qualifying round in Venice Beach, Cal., and features obstacles such as the Frame Slider, Domino Hill, Chain Swing and Flying Nun Chucks.

The conclusion of the two-part Season 5 opener features a qualifying round in Venice Beach, Cal., with obstacles such as the Frame Slider, Domino Hill, Chain Swing and Flying Nun Chucks.

Part 1 of 2. A qualifying round in Baltimore features obstacles such as the Downhill Jump, Prism Tilt, Swing Jump and Circle Cross.

Conclusion. A qualifying round in Baltimore features obstacles such as the Downhill Jump, Prism Tilt, Swing Jump and Circle Cross.

Part 1 of 2. A qualifying round in Miami featuring the Utility Pole Slider, the Balance Bridge, the Slider Jump and the Monkey Peg. Contestants include Olympic medalist Dee Dee Trotter.

Conclusion. A qualifying round in Miami featuring the Utility Pole Slider, the Balance Bridge, the Slider Jump and the Monkey Peg. Contestants include Olympic medalist Dee Dee Trotter.

Part 1 of 2. A qualifying round in Denver featuring obstacles such as the Rolling Log, the Rotating Bridge, the Jump Hang Kai and the Grip Hang. Contestants include professional snowboarder Graham Watanabe.

Conclusion. A qualifying round in Denver featuring obstacles such as the Rolling Log, the Rotating Bridge, the Jump Hang Kai and the Grip Hang. Contestants include professional snowboarder Graham Watanabe.

Part 1 of 2. Thirty contestants compete in the Venice Finals. The course features obstacles such as the Salmon Ladder, the Rope Maze, the Cliffhanger and the Spider Climb.

Conclusion. Thirty contestants compete in the Venice Finals. The course features obstacles such as the Salmon Ladder, the Rope Maze, the Cliffhanger and the Spider Climb.

Part 1 of 2. Participants compete in the Baltimore finals. The course features 10 obstacles, including the Rumbling Dice and Body Prop.

Conclusion. Participants compete in the Baltimore finals. The course features 10 obstacles, including the Rumbling Dice and Body Prop.

Part 1 of 2. The Top 30 competitors attempt the Miami Finals course, which includes two new obstacles: the Ledge Jump and the Rolling Steel.

Conclusion. The Top 30 competitors attempt the Miami Finals course, which includes two new obstacles: the Ledge Jump and the Rolling Steel.

Part 1 of 2. Thirty competitors attempt the Denver Finals course, which includes two new obstacles: the Floating Stairs and the Pole Grasper.

Conclusion. Thirty competitors attempt the Denver Finals course, which includes two new obstacles: the Floating Stairs and the Pole Grasper.

The top finishers from the regional finals face a course modeled after Mount Midoriyama in Japan. Competitors try stage 1.

The top finishers from the regional finals face a course modeled after Mount Midoriyama in Japan. Competitors try stage 1.

The top finishers from the regional finals face a course modeled after Mount Midoriyama in Japan. Competitors try stage 2.

The top finishers from the regional finals face a course modeled after Mount Midoriyama in Japan. The remainen competitors try stage 3.