Micro man is Jimmy smalls, son of Walter smalls, a scientist that works for the United States army designing super suits for soldiers, and Melinda smalls, a rich billionaire that works in the technology business.
Jimmy was first able to become Micro when he got his hands on one of his dads super suits. This super suit had the power to turn anyone tiny and let them fly and give them blasters. Some even say Micro man is as small as an ant. If Micro man does not take his special medicine, he will not be healthy when he turns from small to large and can die.
Micro man has an arch enemy named Macro man. Macro man has a super suit that make him turn as giant as a building. Micro man spends his time trying to find Macro man and fighting all other evils that threaten his world.