The new American Ninja Warrior: Ninja Warrior 4 is a story that will be told from the point of view of two American warriors who have lost their lives, and one American warrior who will go on to save the world.
The first episode of the series will air on CBS in January, and the series is expected to air in the US this year.
It will also be released on Apple TV in the UK and in the United States via iTunes in late March.