As a young child, Sneers' parents were killed by firebenders, which eventually led him to join Jet and the Freedom Fighters. When Jet and the other Freedom Fighters ambushed a camp of some Fire Nation soldiers, Sneers jumped out of a tree to engage two armed soldiers without wielding any weapons himself. He relied on pure physical strength to push the first soldier up in the tree and throw the other away. He appeared to be unfazed by the excitement of battle, as he started eating some of the soldiers' leftover food as soon as they had retreated. Sneers later helped Pipsqueak and The Duke load a cart with the stolen supplies, which included blasting jelly and jelly candy, among other items.