Ultra Violet is the third general of the Sons of Garmadon in LEGO Ninjago: Masters of Spinjitzu, serving as one of the three secondary antagonists (alongside Killow and Mr. E) of Season 8: Sons of Garmadon, as a major antagonist in Season 9: Hunted, as a minor antagonist in Season 11: Secrets of the Forbidden Spinjitzu, and as a supporting antagonist in Season 12: Prime Empire.
When Ultra Violet joined the Sons of Garmadon, she helped Harumi bring Lord Garmadon back from the dead. She tends to giggle in strange situations. And when the Sons of Garmadon attacked the Royal Palace of Ninjago, their goal was to steal the Oni Mask of Deception. And they did it. And then they still had to get the Oni Mask of Hatred. And when they did, they began the resurrection of Lord Garmadon. However, the Ninja came to prevent it and rescue Lloyd and Misako, and Harumi took advantage of whether the Ninja would rather rescue Lloyd or Misako. But the Ninjas succeeded in rescuing both, and after that, Ultra Violet and the Sons of Garmadon ended up in prison. The Ninja thought they had stopped Garmadon's resurrection, but he still came back, and when Lloyd lost to his returning and evil father, Ultra Violet and the Sons of Garmadon escaped from the Kryptarium Prison and began to conquer Ninjago. And then they took power, and Garmadon ruled over Ninjago. But when the rest of the Ninja and Master Wu returned from the Realm of Oni and Dragons, they teamed up with their friends and defeated Lord Garmadon and the Sons of Garmadon, and then Ultra Violet and the Sons of Garmadon ended up in Kryptarium Prison with their boss. Later, after Aspheera banished Zane to the Never-Realm and other Ninja went to seek and rescue him, Ultra Violet and the Mechanic learned that the Ninjas had disappeared and tried to escape the Kryptarium Prison, and during the escape they tried to convince Fugi-Dove which of the Ninjat is the worst. But P.I.X.A.L. prevented their escape, and after that they considered her the worst.