Dr. Alec Holland, hidden away in the depths of a murky swamp, is trying to produce a brand new species - a blend of plant and animal capable of adapting and prospering within the harshest conditions. He becomes subject of his creation and can be transformed. Arcane, desperate to the formula, tries to capture the Swamp Thing. An volatile chase ensues that ultimately ends with a confrontation between Holland and also a changed Arcane...