Season 1: Curse of Morro

Plot
Following the defeat of Master Chen and his followers, the ninja have trained new students to be like them. However, the ninja's powers were stolen by a stranger named Ronin with the use of a Obsidian Glaive. The ninja look for him, meeting Jack and Rune, and find out he has help from Kronos. After receiving an unexpected visit from Morro, the Master of Wind, the ninja chase Ronin and Kronos through time only to see Morro again and realize Ronin's plan is to stop Morro.