Shintaro the Samurai: "Hide and Seek Death" *Decent Web Rip*
A young boy disappears while playing with a friend and so his frantic mother goes searching for him. On the beach, she's captured by ninja and tied up next to her son. The lead ninja brags about both of them will die along with a noble lord they plan to kill by planting a bomb in his boat. The other ninjas complain he talks too much just before Shintaro and ninja from an opposing clan turn up to save the day. After a fight, the duo are rescued.
*The sound dubbing is especially bad for the majority of this clip; be advised.*