Season 4

E1. Southwest Qualifying Round (1)

May 20, 2012 · 60m

People from the Southwest compete for a chance at the world's most difficult obstacle course.

E2. Southwest Qualifying Round (2)

May 20, 2012 · 60m

People from the Southwest compete for a chance at the world's most difficult obstacle course.

E3. Southwest Regional Finals

May 22, 2012 · 60m

The top 30 finishers from the Southwest qualifying round take on an even more challenging obstacle course to advance to the national finals.

E4. Midwest Regional Qualifying Round (1)

May 27, 2012 · 60m

Midwest competitors try to qualify for the national contest.

E5. Midwest Regional Qualifying Round (2)

May 27, 2012 · 60m

Midwest competitors try to qualify for the national contest.

E6. Midwest Regional Finals

May 21, 2012 · 60m

The top 30 qualifiers compete for a chance to move on to the national finals and tackle a harder course in hope of getting the $50,000 prize.

E7. Northeast Regional Qualifying Round (1)

May 28, 2012 · 60m

Elite Northeast ninjas take on the qualifying course in Miami, FL. The obstacles are the Quad Steps, Log Grip, Bungee Bridge, Jump Hang, Jumping Bars, Wall Lift, and Warped Wall. Veteran ninjas include top competitor Chris Wilczewski and Travis Graves, who has something to prove, while freerunning fisherman Jesse Villarreal and rapping Noel Reyes take on the course for the first time.

E8. Northeast Regional Qualifying Round (2)

May 29, 2012 · 60m

The other batch of Northeast competitors face the Northeast qualifying course, which includes the Quad Steps, Log Grip, Bungee Bridge, Jump Hang, Jumping Bars, Wall Lift, and Warped Wall. Veteran ninjas include freerunning champion Tim Shieff and Bay Area stuntman Luis Moco, while 5'5" Michael Needham and firefighter Mike Bernardo take on the course for the first time.

E9. Northeast Region Finals

Jun 3, 2012 · 60m

The top 30 Northeast finishers take on a more challenging course.

E10. Northwest Regional Qualifying Round (1)

Jun 3, 2012 · 60m

Top contenders from the Northwest face off against the Northwest qualifying course, featuring the Quad Steps, Log Grip, Spinning Log, Jump Hang, Pipe Slider, and Warped Wall. Veteran ninjas include "the Godfather" David Campbell and the colorful Ryoga Vee, while type-1 diabetic Kyle Cochran and top female competitor Janine Cundy take on the course for the first time.

E11. Northwest Regional Qualifying Round (2)

Jun 4, 2012 · 60m

The other batch of Northwest competitors take on the qualifying course that features the Quad Steps, Log Grip, Spinning Log, Jump Hang, Pipe Slider, and Warped Wall. Veteran ninjas include freerunner Brian Orosco and ice cream vendor James McGrath, while his brother Patrick McGrath and Alaskan native Gunner Bahn take on the course for the first time.

E12. Northwest Regional Finals

Jun 5, 2012 · 60m

The top 30 competitors from the Northwest qualifying round tackle the finals course with a chance to move on to Las Vegas. The back obstacles are the Salmon Ladder, Arm Rings, and Cargo Climb (additionally, the Pipe Slider is replaced by the Devil Steps). Favorites include David Campbell, James McGrath, Patrick McGrath, Kyle Cochran, Gunner Bahn, and 51-year-old Tom Hutchman.

E13. Midsouth Regional Qualifying Round (1)

Jun 10, 2012 · 60m

Top Mid-South ninjas tackle a qualifying course that includes the Quad Steps, Log Grip, Bridge of Blades, Jump Hang, Rope Junction, and Warped Wall. Veteran ninjas include two-time Japan veteran Paul Kasemir and freerunner Brandon Douglass, while rock climber Brian Arnold and "Big" Bob Pondrom take on the course for the first time.

E14. Midsouth Regional Qualifying Round (2)

Jun 10, 2012 · 60m

The other batch of Mid-South competitors do battle with the Mid-South qualifying course, which includes the Quad Steps, Log Grip, Bridge of Blades, Jump Hang, Rope Junction, and Warped Wall. Veteran ninjas include Colorado freerunner Jake Smith and Japan veteran Rich King, while former West Point cadet Ahmed Toure and breakdancer Lorin Ball take on the course for the first time.

E15. Midsouth Regional Finals

Jun 11, 2012 · 60m

The top 30 competitors from the Mid-South qualifying round tackle the finals course with a chance to move on to Las Vegas. The back obstacles are the Salmon Ladder, Lamp Grasper, and Cargo Climb. Favorites include Paul Kasemir, Jake Smith, Ahmed Toure, Brandon Douglass, Brian Arnold, and Bob Pondrom.

E16. Southeast Regional Qualifying Round (1)

Jun 12, 2012 · 60m

Athletes and everyday people compete for a chance to take on the World's Most Difficult Obstacle Course.

E17. Southeast Regional Qualifying Round (2)

Jun 17, 2012 · 60m

Athletes and everyday people compete for a chance to take on the World's Most Difficult Obstacle Course.

E18. Southeast Regional Finals

Jun 17, 2012 · 60m

The top 30 Southeast finishers compete on a more challenging course..

E19. Las Vegas Finals (1)

Jun 18, 2012 · 60m

One hundred competitors attempt the most-difficult obstacle course.

E20. Las Vegas Finals (2)

Jun 19, 2012 · 60m

Stage 1 of the most-difficult obstacle course continues.

E21. Las Vegas Finals (3)

Jun 24, 2012 · 60m

Stage 1 of the most difficult obstacle course continues.

E22. Las Vegas Finals (4)

Jun 24, 2012 · 60m

Stage 1 of the 8 obstacle course will challenge even the most skilled competitors.

E23. Las Vegas Finals (5)

Jun 25, 2012 · 60m

Stage 1 of Mt. Midoriyama comes to a close. The 12 competitors are David "Flip" Rodriguez, David Campbell, Tim Shieff, Paul Kasemir, James McGrath, Andrew Karsen, Evan Dollard, Drew Drechsel, Jesse La Flair, Matthew Derouen, Brandon Douglass, and Luis Moco. The finishers advance to Stage 2.

E24. Las Vegas Finals (6)

Jun 26, 2012 · 60m

Ultimate challenges including the Spider Flip and the Double Salmon Ladder.

E25. Best of Southwest

Jul 8, 2012 · 60m

Previously unseen footage includes top finishers from preliminary rounds tackling a challenging obstacle course.

E26. Best of the Midwest

Jul 8, 2012 · 60m

Competitors face a challenging obstacle course in hope of landing a spot in the finals.

E27. Best of Northeast

Jul 8, 2012 · 60m

Top contenders tackle a challenging obstacle course in hope of moving to the final round.

E28. Best of Northwest

Jul 9, 2012 · 60m

Competitors face a challenging obstacle course in hope of landing a spot in the finals.

E29. Best of Midsouth

Jul 10, 2012 · 60m

Athletes face the eight obstacles of Stage 1 in Las Vegas.

E30. Best of Southeast

Jul 16, 2012 · 60m

Finalists take on a four-stage course. Challenges include a "jumping spider" and a "spinning bridge."