Australian Ninja Warrior is a sports entertainment competition spin-off of the Japanese television series Sasuke which premiered on 9 July 2017 on the Nine Network.[1] It features hundreds of competitors attempting to complete series of obstacle courses of increasing difficulty, in hopes of advancing to the finals and becoming the season's "Australian Ninja Warrior." The fourth season premiered on 26 July 2020, on Nine Network. The season was filmed at Melbourne Showgrounds, Melbourne. In this season there was a total of over 140 ninjas, each was placed into one of the four heats, with the top 16 in each heat advancing to the Semi Finals.