Nano Invaders chronicles the visually striking adventures of 11-year-old Hikaru, who is pulled into a series of conflicts between two competing alien clans. One day, Hikaru tries on a bracelet belonging to his classmate Mimi and transforms into a monster. Mimi’s family serves as a specialized scouting unit from the planet Anima. When alien invaders from the rival planet Damon assault the city, Hikaru teams up with Mimi’s family to resist. The battle is broadcast on television, turning Hikaru and the aliens into instant celebrities. The simple-minded Hikaru is delighted to see his dream realized, unaware that Mimi’s family is also plotting to conquer Earth!