Dimension 1 (John Smith 10)
After losing the Omnitrix, the Violet Offenders had robbed a bank. John gave chase using only his mana powers, and they were able to outmaneuver him and send him crashing into a truck.
John later encounters an alternate dimension version of them, and takes out his anger from the last loss out on them. He defeats them with ease.
After returning to his home dimension, John fights the Violet Offenders again, who are now working for Otto.
Dimension 2 (Ryder 10)
The Violet Offenders work for Otto, and assist him in robbing Fort Knox to trap Ryder. He later is caught in a separate episode.
Dimension 3 (Jane Smith 10)
The Violet Offenders once again work for Otto.