Warning! This review contains SPOILERS for Countdown season 1, episode 12.Countdown's new episode does a good job setting up the season 1 finale to be an unmissable event. Last week's episode of ...

Editor's note: The below recap contains spoilers for Countdown Episode 12. After a pretty major time jump, Countdown hit the gas and sped right into a brand-new threat as Mark Meachum (Jensen Ackles), ...