Mike Fukanaga is an awkward high school kid who discovers he comes from a long line of Ninjas. He becomes the leader of a team of crime fighters, known as the Supah Ninjas.

Katara Sharp, a seemingly klutzy bookish-type, is actually a knife-throwing cat burglar obsessed with stealing priceless antiquities. While the Ninjas are on to her, she'll stop at nothing to get what she wants.

Famed villain Two Ton Harley escapes from a high security prison and intentionally gets caught in order to be reunited with his motorcycle gang, the Wrecking Crew, in a different prison.

After learning about the disappearance of an under-cover police detective, the Supah Ninjas discover that the villain Checkmate, a former chess prodigy, is to blame. The Ninjas must now enter into Checkmate's dangerous world.

Owen is having a hard time with the boring discipline side of Grandpa's teachings. When he recognizes that an old friend is part of the dangerous Subsiders parkour crew, Owen infiltrates their underground lair to save him.

Amanda's favorite teacher Mr. Bradford, is living a double life. A scientist who used to work for a major pharmaceutical company, Bradford now teaches high school biology but continues to perform controversial tests.