The Teenage Mutant Ninja Turtles are back in an all-new animated series on Nickelodeon! Surfacing topside for the first time on their fifteenth birthday, the titular turtles, Leonardo, Michelangelo, Raphael and Donatello, find that life out of the sewers isn't exactly what they thought it would be. Now the turtles must work together as a team to take on new enemies that arise to take over New York City.
The series is a prequel, featuring the high school years of Flint Lockwood, the eccentric young scientist in the films. In his adventures, he will be joined by Sam Sparks, a new girl in town and the school's "wannabe" reporter, along with Flint's dad Tim, Steve the Monkey, Manny as the head of the school's audiovisual club, Earl as a school gym teacher, Brent as a baby wear model, and Mayor Shelbourne, who wins every election on the pro-sardine platform.
Ronja is the only daughter of Mattis, a bandit leader who lives in a castle in the middle of a large forest. When Ronja grows old enough, she ventures into the forest to interact the strange and magical creatures that live there. She learns to live in the forest through her own strength, with the occasional rescue from her parents. Ronja's life begins to change, however, when she happens upon a boy her own age named Birk.
Four turtles fall into the sewers and are befriended by Hamato Yoshi a Japanese man sent to New York who was forced to live in the sewers. One day he sees a strange green glow which transforms the four turtles into human-like creatures. Hamato (now Master Splinter) changes into a giant rat from the green glow and teaches the turtles the skills of the ninja as they team up with news reporter April O'Neil to battle against Yoshi's arch enemy Shredder and Krang, an alien warlord from Dimension X.
Follow Herc's many labors during the years he spent training on how to be a hero under the tutelage of satyr Phil. Many of the Olympian Gods and Goddesses pay visit to the young hero-to-be and help or hinder him in his new adventures.