RJ is hurt to hear that Casey wants a new master. RJ tells him the master coming is not right for him. While battleing Crustaceo, the rangers run into Casey's new master, Master Finn. RJ reveals that Master Finn is his father. Master Finn trains an eager Casey who learns all about the shark technique. Through a battle, Dai Shi corners Master Finn. RJ uses his wolf spirit to protect his dad. Master Finn is proud of what his son has become.