10 Years Earlier

6 year old CJ was with his mother, Seliel, since his father, Cole Sr., had to work, and the young boy was very bored at home, so Seliel decided to take her son to Mega Monster Amusement Park, where they bump into Jay and Nya, as well as 6 year old Joan and 4 year old Cliff, who was on his father's shoulders, wearing a samurai costume since the park is often filled with kids in costumes. "Seliel, fancy seeing you here." Nya said as Joan notices a small bulge around CJ's crotch.

"Hey, Nya, Jay." Seliel replied before tickling Cliff a bit, who giggles. "How are you, little Clifton?"

"He's just had his first week at pre-school." Jay replied, rocking his young son a little.

"But Joan got in trouble at school again." Nya said. "She pantsed a young boy at school."

"Mickey was meanie to me, mommy!" Cliff replied, hoping to defend her sister.

"That doesn't give your sister the right to pull down his pants, son."

"Joan, what are you doing?" CJ asked Joan as they were facing some kids, including Gabby, who were there for a Borg Industries employee's kid's birthday before the worst began. She instantly pulled down his orange shorts to show that he was wearing a diaper. The kids then started to laugh at him at the fact the son of a police officer, future Master of Earth, and Black Ninja was still in diapers.

What made it more funnier to them was a dark patch started forming around the front of CJ's padding. "Cole Jr. wet his diapey!" One kid called out.

"Mommy!" CJ immediately started to cry. Jay, Nya and Seliel heard the laughter and CJ's crying before Seliel took her son into his arms before throwing down some smoke pellets. Once the smoke faded, CJ and his mother weren't there anymore, and Jay reprimands his daughter.

The whole incident left CJ traumatised, even though Joan did apologise to him for exposing his secret. Since that day, he never went to Mega Monster Amusement Park again, he was called 'Diaperstone', 'Brookppy', and the worst of all was 'Diaper Ninja' during elementary school despite its zero tolerance to bullying that put multiple students in detention and two teachers even got suspended for calling him those names, and CJ tried his best to stop his bedwetting and nervous bladder, eventually managing to do so after two years, stopped wearing diapers, and the name calling even stopped.

—————

Present

It was the first time CJ returned to Mega Monster Amusement Park in 10 years, and was feeling a little on edge, since the public knows he is the Black Ninja, but also the '6 Year Old Still in Diapers'. Even though the public also apologised and the park's owners had fired the employee who took the photo, CJ still refused. As soon as they had shown up, he still felt reluctant, so they decided to wait for the other three former Ninja. As soon as Don, Gabby and Cliff arrived, they start to head in to begin their fun, and to cheer Gabby up. "Come on, CJ." Cliff said, dragging his best friend forward.

"Well, okay." He replied.

—————

But back in Ninjago City, while the former Ninja and samurai were at Mega Monster Amusement Park, customers were waiting in a bank to either apply for a loan or make a deposit. But as it happened, some men wearing black put on some masks, raise some rifles that were hidden in jackets, and fires them in the air. "Nobody move!" One of them yelled as the customers and employees get down on the floor while a security guard prepared to get out his pistol.

But before he could, a metallic hand emitting electricity suddenly touched his neck, causing him to flail and land on the floor, shaking as he did so, and the culprit picks up his pistol. "Kindly donate your phones, watches, jewellery and cash to the gentlemen in black." A familiar voice said as they all saw that the person who spoke was L.A.R.O.G., who also wears black clothing. "Do not resist, or you'll get a ticket to the Departed Realm."

The hostages start taking out their phones, watches, jewellery and money as the men pick them up to put them in their bags while two of them came up to the bank tellers to remove the cash from the drawers, avoiding the ones with dye packs in them as one child looked up, and a gunman aimed his rifle at him. "Stand up, you're dead!" He yelled, causing the boy to lower his head again.

"Remain calm." L.A.R.O.G. called out before coming across the vault as two robbers accompany him. "Stand back." L.A.R.O.G. raised his left hand, which emits electricity, and slams it at the keypad, sending electrical currents through it until a beep was heard. The vault door briefly opens and one of the robbers opens it. "Let us start filling the bags at once." L.A.R.O.G. and the robbers head inside, unaware that they had tripped a silent alarm.

—————

Once they received the alert at the bank, the NCPD immediately called for all available units to head for the bank. Some police cars in the vicinity immediately stopped around it, formed roadblocks, cleared the citizens away from it, and geared up. Cole, with a bulletproof vest over his white shirt and black tie, pumps his shotgun while grabbing a nearby bullhorn as the officers aimed pistols or shotguns at the entrance while snipers were on nearby roofs. "This is Detective Cole Brookstone Sr. of the NCPD!" He called out. "We've got the place completely surrounded! Lay down your weapons and exit the building with your hands up!"

The doors then bursted open with the officers immediately shocked to see who was coming out with their hands up. "I surrender." It was L.A.R.O.G.

"Down on the ground, at once!" L.A.R.O.G. smirked and complied by getting on his knees, putting his hands behind the back of his head. "Move in!"

The officers start to move in before one came up to L.A.R.O.G., who suddenly grabbed his wrist. "Psyche!" He quickly jumped back onto his feet before palming his hand at the officer's neck, choking him before he threw him back as another came up behind him, but L.A.R.O.G. turned to him, raised his leg, and kicked the officer, sending him flying into a squad car.

Cole pumps his shotgun before firing it at L.A.R.O.G., hitting the side of his head, but he was unfazed by the shot, as he turned to face the former Ninja turned detective. "L.A.R.O.G., stand down."

"I do not take orders." Cole soon started to fire his shotgun again, but each barely fazed him until the Nindroid faced his former colleague, immediately gripping the weapon, and raised it high to hit him in the face. The strike made Cole collapse and lose the shotgun, which L.A.R.O.G. instantly snapped in half and threw the pieces aside.

The Nindroid then went up to another officer, who nervously fired his Walther, but the bullets barely faze him as he soon grabbed hold of him. "Where are the Ninja?" A witness asked as L.A.R.O.G. spun the officer and threw him down. "Isn't it time they came out of retirement?"