c. 32 BBY
Niner was a clone trooper of the Grand Army of the Republic serving in Commander Fil's squad. Being born sometime around 32 BBY, he was bred on the water-world Kamino and grew up trained as a soldier. Around 22 BBY, he was put under the command of newly appointed Jedi Knight Nahdar Vebb. He then flew to the moon of Vassek, where Viceroy Gunray was supposedly hiding.
At the bottom of the building where the viceroy was at, they met up with General Vebb's master, Jedi General Kit Fisto. Fil and some of his men entered the premises, leaving Niner and Bel outside with the shuttle in case they needed to contact anyone. Soon, their commanding officer, Fil, ordered them to call for backup, when it was found to be Grievous' hideout. Unfortunately, a MagnaGuard used a missile launcher and destroyed the shuttle and the clones within.