Watch Tetsujin 28-gou: Hakuchuu no Zangetsu Online

This theatrical version based on the manga by Yokoyama Mitsuteru, deals with the genius boy detective Kaneda Shotaro and his giant robot, Tetsujin 28, set in Tokyo ten years after the end of the Second World War. Shotaro's missing brother appears as a a new character who was trained as a pilot of the soldier robot Tetsujin which Japan had created for the Second World War. However, with the end of the war, there was nothing left for him but a peaceful Japan. In the meantime, "Destruction Bombs" are found in many places in Tokyo. The bombs were developed by Professor Kaneda, the creator of Tetsujin 28 and Shotaro's father, as the ultimate weapons to protect the mainland. If the bombs explode, Tokyo will be reduced to ashes.

In post-WWII Japan, Prof. Shikishima has built up Shikishima Industries to be a technological powerhouse, working on developing robots. However, at the heart of their success lurks a dark secret from the war, something that cost the life of Prof. Kaneda, the mentor of Prof. Shikishima. Now Kaneda's son, Shoutarou, is about to learn the truth, and it will change him forever.

Shotaro had become an Interpol agent, working with Branch Robo, the antirobot crime unit of that organization. He still employs Tetsujin.

Dr.Haneda was developing experimental giant robot warriors to fight the allies during the Second World War, but before his creations could see action, Allied bombs destroyed the facility and killed him. A decade later criminals discovered two of the surviving prototypes, #26 and 27 in the series, and used the remote controlled robots to commit a number of crimes. Young Shotaro Haneda, the twelve year old son of Dr.Haneda, did some investigating and discovered that the mob were hunting for the twenty-eighth robot in the series, rumoured to be the most powerful of them all. Racing the villains, Shotaro discovers the robot first, along with Dr.Shikashima, a colleague of his father's who was also believed killed by the Allied bombing. Together the two prevent Tetusjin-28 (the robot's official designation) from falling into the hands of the bad guys, and decide to dedicate him to peace rather than war. Shotaro fought crime for a long time, supported by Dr.Shikashima, who would repair Tetsujin-28 when he was damaged, and by police officer Otsuka. Shotaro even battled the alien Magmans, invaders from the planet Magma, who came to Earth late in his career, bringing their own giant robots, Magma X and Gold Wolf, with them.

In post-WWII Japan, Prof. Shikishima has built up Shikishima Industries to be a technological powerhouse, working on developing robots. However, at the heart of their success lurks a dark secret from the war, something that cost the life of Prof. Kaneda, the mentor of Prof. Shikishima. Now Kaneda's son, Shoutarou, is about to learn the truth, and it will change him forever.