3 Ninjas Knuckle Up

As the sun-kissed days of summer unfold, three boys—Rocky, Colt, and Tum Tum—experience the joys of childhood. They spend their days with their wise grandfather, Mori, unaware of the challenges that lie ahead.

The boys become witnesses to the passionate protests of Native Americans who are fighting against the toxic waste industry. They observe how their desperate calls for assistance are largely ignored by those in power, igniting a sense of urgency within them.

One day at a local pizza parlor, the boys see fierce activist Jo being assaulted by the thugs of J.J., prompting them to intervene. Their actions trigger an unexpected altercation, revealing their hidden talents in martial arts.

The crowd cheers as the boys defeat the bullies, celebrating their victory. However, their grandfather admonishes them for the destruction caused during the fight, insisting they help repair the damage to the pizza parlor.

Jo reveals that J.J.'s gang is part of a larger nefarious plot led by Jack Harding, who plans to dump toxic waste in the Native American reservation. She also shares that her father, Charlie, has gone missing while investigating Harding's illegal operations.

With Jo's help, the boys devise a strategy to infiltrate Jack Harding's operations. Guided by Mori, they stealthily enter the facility, where they overhear a conversation exposing corruption intertwined with the local mayor.

The boys uncover Charlie's whereabouts, discovering he is imprisoned. Their bravery pays off as they engage in a daring rescue mission, successfully freeing him from captivity, much to the joy of the local tribe.

The boys and the tribe celebrate their victory, relishing the lives they have enriched through their brave actions. However, their joy is threatened as Jack and his gang prepare to launch a final assault against the celebration.

Undeterred by the impending danger, the boys unite with Native Americans to fight off Jack's attackers. Guided by Mori’s wise advice, they engage in a fierce battle for justice and truth.

In the aftermath, Charlie and his family begin to gather incriminating evidence against Jack Harding. They strategize on ways to ensure the evidence is presented to the authorities to stop Harding's toxic plans.

In a sinister move, Jack plots to kidnap Jo to coerce Charlie into fabricating evidence against him. This immoral scheme threatens to cripple Charlie's determination to protect his daughter and defeat Harding.

Determined to save Jo, Rocky, Colt, and Tum Tum set out on a dangerous mission to track her down. They navigate through an abandoned town infested with armed bikers, driven by the urgency of their task.

After successfully rescuing Jo, the boys return just in time for her father to present the evidence in court. The stakes are high as they stand against Jack's henchmen in a tense courthouse showdown.

At the critical moment, Jo bursts into the courthouse just when her father is about to surrender. Charlie boldly confronts Jack, admits his mistakes, and unveils the evidence that could bring Jack down.

As the chaos settles, Rocky, Colt, and Tum Tum quietly leave the courthouse, their identities as heroes unknown. Back at Mori’s home, they reflect on the lessons learned about true heroism and the joy of selfless acts.