When the planet's most dastardly microscopic villains wreak havoc in a realm entirely too small to be viewed by the naked eye, 9-year-old schoolboy Oscar transforms himself into Nanoboy -- the world's smallest superhero. Pals Isaac Neutron and the reformed virus Corona Jane support Nanoboy's heroics as they battle cellular villains, including evil proteins and bacteria.
Something quite unexpected happens when Annie is forced to spend the summer with her aging, warrior grandmother in the sleepy rural town of Singing Rocks, China. It doesn't take long for Annie and her cousin Yong to find out that their grandmother is the keeper of three secret and powerful masks that will guide them in their quest to be the next generation of warriors to help save the world.