Season One of Defiance was presented by the SyFy channel in 2013. The season premiered with the Pilot on April 15, 2013. Marketing before the premiere included release of the first fourteen minutes of the episode to the general public on line. Gamers who had registered as "ark hunters" were able to view the entire episode early.
- Pilot
- Down in the Ground Where the Dead Men Go
- The Devil in the Dark
- A Well Respected Man
- The Serpent's Egg
- Brothers in Arms
- Goodbye Blue Sky
- I Just Wasn't Made for These Times
- If I Ever Leave This World Alive
- The Bride Wore Black
- Past Is Prologue
- Everything Is Broken [1]