Episode 4-4

With bragging rights and cash prizes on the line, the Ninja all-stars will go head-to-head on five super-sized obstacles as they attempt to break international records.

After being conquered last year, Mt Midoriyama wants revenge. Ninja's will be challenged in new and unexpected ways on the toughest course ever designed.

It's the third semifinal and the last chance to qualify for the Grand Final. With dual racing action across awe-inspiring obstacles, the Newcomers, Legends and Teens battle it out in a race to make the…