Rachel was a normal girl, getting decent grades, playing the flute and violin, and being a fangirl. Until she and her parents move to New York for their booming business.

When the Kraang invaded New York, Isuvenis and her dog Max are forced to leave the city and hide in the woods. Where they meet new some new friends. Issy has powers that the Kraang and Shredder are after. Can Issy and her new friends defeat them? Takes place in the 3rd season because I felt like that they matured a little in this season.