Thorn lives in Hunter Valley. He is the sister of Flavia He has a Utahraptor girlfriend named Jasmine. When he was younger, he and his friends found a Clubtail egg and brought it to Hunter Valley, not sure of what was in the egg. Upon finding that the baby was a Clubtail when it hatched, Thorn at first wanted to eat the baby, but his friend Lorenzo talked him out of it. So he and the others hid the baby, whom they named Leafie.

He and his friends have an enemy named Dakota, who is the nephew of the pack leader, Xavier.