Doctor Henry Pym declares success! He has successfully used his reducing serum to shrink a chair to doll size and used his enlarging serum to return it to normal size. Pym had been ridiculed months ago by his peers for his outlandish theories but has now perfected a pair of serums capable of changing the size of any object. Confident that his serums work, Pym tests them on ... himself.
His partner Vernon van Dyne goes up against him, trying to make his own serum and goes mad. Pym has to stop him, but he gets some help.
