Professor Kaneda creates the ultimate soldier robot, Tetsujin, as a substitute for his son, Shotaro, whom he mistakenly believed died in a bombing raid on Tokyo during World War II. The professor hides the robot to prevent the army from using Tetsujin as a tool for destruction. Ten years after the war, Tetsujin is finally resurrected! This is a reimagining of the classic series Tetsujin 28!