Newest Trailer for Marvel's 'The Defenders' Focuses on the Main Villain

Netflix just released the newest and last trailer for its upcoming Marvel series The Defenders. Much of the focus has been on the heroes -- Iron Fist, Jessica Jones, Luke Cage, and Daredevil -- but the scene now shifts to the main villain, Alexandra. Not much is known about the character Sigourney Weaver plays but it looks like she's very diabolical in the threats she serves in this clip. Like most antagonists, one of the only ways they try to defeat a hero is by inflicting pain on the ones they...