During his Jedi training, he and two other Jedi younglings—Kalifa and O-Mer—went on a mission that saw them captured by hunters and taken to the Trandoshan moon Wasskah to be hunted for sport. However, the trio evaded their captors by hiding on an island located on the moon's surface, establishing a hideout inside a hollow tree.
After Jedi Padawan Ahsoka Tano was also abducted and dropped off on the island around 21 BBY, during the Clone Wars, her aggressive stance and urging to engage the hunters boosted the confidence of both Jinx and O-Mer, and they decided to seek out the hunters' base.
With the help of Tano, the team engaged the hunters, freeing the captive Wookiee Chewbacca, and eventually assaulting the Trandoshan floating fortress. There, Jinx engaged the Trandoshans on an external landing pad but was soon cornered along with his companions. Eventually, however, Jinx and the others were saved by a Wookiee rescue team led by General Tarfful, who killed the remaining hunters. He was later reunited with his master.