Defiance: Upon the March We Fittest Die

"Upon the March We Fittest Die" is the thirteenth episode season three of the science fiction television series Defiance and the thirty-ninth episode of the series overall. It was directed by Michael Nankin with a script written by series creator Kevin Murphy. The episode first aired on Syfy on Friday, August 28th, 2015 at 9:00 pm. In this episode, Joshua Nolan, Irisa Nyira and Doc Yewll embark upon a dangerous mission to the Tsuroz to blow up the ship before the insane Kindzi can unleash hundreds of murderous Omec upon the world. Complicating matters even further is the fact for some of them, this may be a one-way trip. Irisa makes a startling discovery that alters their plans.