Unlike the others in her town, young Pearl West loves mechs like they were her own pets. But her life is turned upside down when she meets a mysterious new mech who carries a big secret.

Pearl sets out on the cattle drive carrying a big secret. If Six is discovered by her brother or worse, the bandits, it’s all over for Pearl and her new friend.

Pearl and friends stop in a town full of shifty gamblers. When Casey's old mentor shows up, a scheme hatches to win Six for their own. Will Casey stay true to his new friends, or betray them?