Randy Cunningham, a 9th grade kid, becomes a ninja and is to protect Norisville High School.

Randy and Howard try to get into a cool zone in the bleachers when watching their school play basketball. When one of the triangle-playing band...

Randy and Howard become judges for their school's talent show and Randy tells Howard that he should be "the mean judge." But the Sorcerer takes this...

When Randy discovers that the Norrisville philanthropist, Hannibal McFist, is his enemy, he has a hard time trying to convince Howard that the one...

Howard accidentally tells everyone on a web show that he knows who the ninja is and he is captured by McFist, who demands that he tell him who the...

The Ninja fights a lizard, which copies a sample of his snot. Later Randy and Howard attend a party Bash is throwing, but it's a scheme so McFist can...

Randy takes a trip to the town's volcano, but it's probably not going to be a nice stop-by.

Randy and Howard want to win the Science Fair, but will they go too far?

Randy and Howard find a note under their school.

Randy accidentally brings the mad scientist back to life.

Randy and Howard wonder why everyone in town is turning into zombies.

A Mexican death bear threatens the school.

Randy must find a way to juggle his life as a ninja and his friendship with Howard during the battle of the bands, while McFist tries to use a truth...

After a fight between Randy and Howard, a monster attacks during the school's annual routine "monster drill" where Howard is pretending to be the...

Randy Cunningham looks for the Skunk Pine in order to restock his smoke bombs. When Randy finds the Skunk Pine, it is stolen by Hannibal McFist to...

After a power outage at school, a Stankified Monster frozen in ice is freed. When Randy de-stanks him, he and Howard learn that his name is Dickie...

The Wave Slayer relays are occurring in Norrisville as Randy and Howard accidentally wrecks the Wave Slayer where an accident injures Buttermaker and...

Randy must learn a valuable new lesson about respect and humility when after accidentally breaking his sword. He enlists the help of the blind metal...

Franz Nukid, a strange new exchange student, threatens to destroy the Ninja as well as Randy and Howard's friendship which Hannibal McFist takes...

When Randy and Howard's video game battle gets out of hand, the Ninja must save the town from a giant robot.

School Spirit Week turns into a disaster after Howard is possessed by a mythical demon bird called the Tengu which Randy releases.

When Randy and Howard are forced to share a lunch table with the outcast group "Der Monster Klub", Randy accidentally tells them how to get people...

During the premiere a new 6D film, the movie's title character comes to life and threatens to destroy Norrisville.

Randy helps students escape from Detention Island.

Bash is thought to be the ninja.

Randy and Howard seek revenge on a French exchange student who stole their Internet video fame - only to cause him to stank out and create a scene...

When a robot disguised as a rival school's chess team member crushes Norrisville High's record - and their spirit, a mass stanking breaks out.

When Randy loses the NinjaNomicon, he must save it before hundreds of years of Ninja wisdom is revealed to his enemies.

Randy and Howard are eager to ride a new roller coaster but first, the Ninja must stop a Robo-Ape uprising.

A feud breaks out when Howard is accepted into a school club and Randy isn't. But when Howard is in danger, the Ninja must put aside his grudge and...

The Ninja accidentally summons a giant monster when he uses an ancient ninja lesson during a rap battle.

Randy must stop a former Norrisville Ninja-turned-nemesis from recruiting an army intended to destroy the Ninja.

Randy must go with Howard to CluckFest under the threat of Bash Johnson. This won't be easy for Randy since he is afraid of chickens. Meanwhile,...

Randy and Howard must sacrifice everything to prevent the Ninja's ultimate enemy from running amuck.

During Ninja Day, McFist schemes to steal the spotlight by introducing a new hero - himself; the real Ranginald is in danger of McFist's fury.

When Randy inadvertently mind-wipes himself and develops amnesia, Howard must fill in as the Ninja until Randy can get his memory back.

Mac Antfee (voiced by David Koechner) returns to Norrisville as a motivational speaker, only to have Randy reignite his burning desire to destroy the...

Randy misuses his Ninja powers, and the Nomicon refuses to let him Ninja out and rescue Howard from a psychotic Cajun trapper named Catfish Booray.

When Randy and Howard don’t have enough money to buy a McSatchle, they get jobs at McFist-O-Plex and Howard becomes Randy’s manager.

When Randy helps Hannibal McFist’s hippie brother Terry (voiced by Steve Zahn) take control of McFist Industries, Whoopee World is turned into...

In order to score a limousine ride with soccer super star Pitch Kickham (voiced by Simon Pegg), the Ninja swipes a pair of shorts to help him win a...

The McFreak Show arrives in town and Randy is convinced that he wants a McFreak as a pet. But when the McFreaks go on a rampage, he realizes that...

Randy, Howard, and all the boys at Norrisville High are entranced by the new girl in school named Amanda Levay. Little do they know that she's the...

Coach Green brings back an old Norrisville High tradition, Prank Day.

During "Ninja Day" McFist schemes to steal the spotlight by introducing a new hero - Himself.

When Randy lies that his name is Ranginald Bagel (voiced by Gilbert Gottfried), he puts the real Ranginald Bagel in danger of McFist's fury.

Due to their ability to break McFist products, the boys become product testers at McFist Industries and inadvertently help Viceroy an indestructible...

Randy and Howard follow Theresa Fowler (voiced by Sarah Hyland) and the rest of their classmates to a cool new club downtown only to discover that...

During the 50th Anniversary Celebration of McFist Industries, the Ninja outs McFist as a villain to the entire town. But with his cover blown, McFist...

Randy becomes so dependent on the Nomicon’s wisdom that he goes to it for advice on everything. To teach him a lesson, the Nomicon traps him...

Randy and Howard accidentally stumble back in time and accidentally stop the original Ninja from stopping the Sorcerer.

Randy and Howard must work the the original Ninja defeat the Sorcerer in order to have a present to return to.