Dr. Horrible's Sing-Along Blog

Act 1 - Dr. Horrible is an aspiring super-villain with a plan for world domination. He also has a crush on Penny, a girl he met at the laundromat. There, he accidentally makes her meet his arch nemesis Captain Hammer whom she falls in love with.

Act II - Penny seems to be smitten with Captain Hammer who's true nature begins to reveal itself: He might not be as into doing good for the right reasons but more for selfish ones. Dr. Horrible decides that he must get rid of Captain Hammer.

Act III - Dr. Horrible invents a death ray which he plans to use on the superhero at the unveiling of a new Captain Hammer statue. Penny is torn between the hero and the villain, realizing that she may have feelings for Horrible.