Seasons & episodes

Tensions flare after Grandfather traps Mike, Owen and Amanda in the dojo to stage an intervention, realizing they've forgotten the true meaning of being Ninjas. Through flashbacks and clips, the Ninjas work out their dilemma of whether or not to go public after Grandfather tells them they've been captured battling a villain on a security camera. After Amanda and Owen want to go public and Mike doesn't, just because it's two against one, they decide to go public. But when they only can have one, Amanda, Mike, and Owen all think that they should be the one. After it is Mike, Grandfather says that not all the tallys have been counted, they do a breathing exercise to reflect on what all has gone on in their ninja lives. Grandfather says that there is no i in ninja to which Amanda keeps complaining about.

Mike's cousin, Connor, returns to Empire City to obtain the floating sword and set up a trap to the ninjas. Mike discovers Connor's identity as an Ishina. He also discovers that his grandfather's twin brother Kagema, who has betrayed the Fukanagas and has now returned to lead the Ishina. In a fight with Connor, Mike loses his mon to him, and the episode ends with Connor inserting the mon into the Supah Ninjas' dojo entrance in Mike's bedroom and it opens up in front of him with Mike, Amanda, Owen and Hologramps looking in despair. Meanwhile Mike is upset, thinking that Amanda and Owen have a thing for each other, after Connor tells him they are into each other. Connor tells Owen that Amanda bleaches her hair, and he tells Amanda that Owen likes her.

In the second-season opener, Connor's motives become clear to the trio, who realize they've underestimated how big of a threat he is.

Amanda McKay starts to develop feelings for Flint Forster, a thief who specializes in the redistribution of wealth, but in trying to keep her crush a secret, her strange behavior leads Owen Reynolds to think she is falling for Mike Fukanaga.

Owen Reynolds is excited to enjoy the fame brought on by a viral photo of him in his ninja suit, but before he can come forward, an impostor called the Shadow Master takes credit for the picture, stealing Owen's fifteen minutes of fame.

Martin catches Mike sneaking out of the house and grounds him, and now Mike must find a loophole in Mike's rules that will allow him to help the ninjas stop Evil Grandpa and the Ishina from using their mapping device to locate the dojo.

When Amanda and Mike pair up in the science fair, Owen gets stuck with Quinton as a science fair partner. Quiton does all the work and gets his project stolen from an evil scientist's assistant.

A cheerleader who was once Amanda's rival is released from juvie, and still holds a grudge against her old foe; suspecting that the rival cheerleader will cause problems, Mike and Owen try to catch her doing wrong by posing as cheerleaders.

When Mike forgets about Martin's birthday, he throws him a last minute party to compensate, but when Ishina crash the party, Mike has to find a way to get his dad out of the house while keeping up the birthday party act.

The Ninjas bring in Kid Q to fix the dojo after it is destroyed and bring Hologramps back, but Kid Q stays longer than the Ninja's had allotted for, and on top of that, he lets Two Ton Harley, their old nemesis, out of prison.

Flint Forster discovers Amanda's true identity and gets a look at her life as a ninja, and when a counterfeiting student takes Amanda and Flint hostage, Mike is forced to save his rival in addition to his friend and ally.

S2 · E10Wallflower 2013-04-20＋

Owen pursues his crush on Paloma Peru; Mike and Amanda bond while filming an audition tape for a game show.

The Ninjas investigate a social media star who uses flash mobs to incite chaos; Paloma grows suspicious of the ninjas.

S2 · E12Spring Fling 2013-04-27＋

Flint asks Amanda to the Spring Fling; Mike must team up with Flint to rescue Amanda; Amanda must decide if she is going to stay in Empire City or study in Paris.

Mike's Cousin Connor returns as a spy and learns that the Kata is the key to finding the floating sword. He tries to retrieve it, but Mike defeats him and takes the sword. At the dojo, Quinton manages to fix Grandpa. In the last scene, Owen realizes that Amanda likes Mike. Mike goes to his locker and finds his grandpa's brother, who captures Mike; ending the series with Kagema flying off with Mike.