Spots was a member of the Advanced Recon Commandos, and he belonged to a group of clone troopers who were stranded on Pengalan IV. Their LAAT/i had been shot down during a large-scale Republic retreat.
Along with his fellow troopers and a Republic accountant named Joram Kithe, he was left to fend for himself and find a way off the desert planet. After Kithe regained consciousness and revealed his commission as a Republic Intelligence lieutenant, he assumed command.
Kithe was troubled by the troopers' strict adherence to protocols and sought to encourage their individuality. As a result, he assigned nicknames to the troopers. Spots received his name due to the red-spotted cloth he wore on his forehead.
After reaching Tur Lorkin, the closest village, and infiltrating a starship bay, Tooth and Kithe discovered that the village was actually the location of the diamond boron missile manufacturing plant, not the factory where the earlier trap had been set.
Determined to destroy the facility, Tooth confronted Kithe and was prepared to disobey his orders to complete the mission. Impressed by his resolve, Kithe conceded. With Kithe's assistance, the troopers sabotaged the factory, while Tooth commandeered a Corellian ship to divert the CIS fighters from the starship bay, allowing Joram and the remaining troopers to escape. Spots guarded the crate of missiles that the troops had stolen during the assault, which they then used to destroy the facility.
He lived through the mission, and continued to serve alongside the other survivors.