Dr. Horrible is a somewhat inept villain with a singular ambition: to join the ranks of the Evil League of Evil. He chronicles his aspirations and frustrations in an online video blog, frequently discussing his nemesis, Captain Hammer, and …

Having inadvertently brought Penny and Captain Hammer together, Dr. Horrible is disheartened by their apparent camaraderie. He refocuses on his freeze ray theft, but another complication arises, and Bad Horse insists upon a dramatic display…

Bad Horse maintains that membership in the Evil League of Evil is only granted to those who commit murder, and with Captain Hammer now romantically involved with Penny, his demise presents a particularly appealing opportunity. Will the vill…