This is the show that taught shounen how to make a ninja actually move. Fujimaru's quest isn't just hunting his mother across the map, it's watching someone learn to fight like the master who raised him, then unlearn it to become something new. Elemental techniques that later shows would turn into five-minute transformations happen here as pure skill, taught in one scene and tested immediately. The problem is finding it; the show lives in the margins now, locked behind region codes and collector prices. Watch it anyway. This is where the blueprint started.
Fujimaru grows up under the tutelage of a ninja named Sasuke after an eagle carries him away from his mother when he is a small child. Trained for years in ninjutsu, he now sets out on a journey to find her. Along the way he comes face to face with his arch enemy and hears of an old book that holds secret ninja arts, which he also hopes to locate. His adventures showcase a wide range of traditional ninja skills, from wielding fire and wind to conjuring illusory copies of himself and hiding underwater while breathing through a reed. This is a straightforward action adventure for viewers who want fights grounded in classic ninja lore.