Frankenstein vs. Baragon

In the aftermath of Hiroshima's bombing, a human heart exposed to radiation grows into a monstrous body, escaping a Japanese lab. Meanwhile, a feral boy with a unique physical deformity is captured and referred to as Frankenstein. As the creature grows to 20 feet tall, it becomes nearly indestructible and wreaks havoc on police and army forces. Eventually, a reptilian monster joins the rampage, leading to a brutal showdown between the two titans.