Kamakura is a ninja and a reservist member of the Sigma 6 team. In this series, both Jinx and Kamakura serve as Snake-Eyes' apprentices. He is seen in several episodes in which he is still training as a ninja under Snake-Eyes and is on the team during a battle between Snake-Eyes and Storm Shadow.
He is later injured and not seen active again until the second season. He was last seen as part of the team Firefly captured. It was rescued by Duke as of the last airing of Season 2.
In the unaired finale, Kamakura faces Storm Shadow and defeats him off-screen.