Jensen Ackles and Jared Padalecki, best known for their work on “Supernatural,” recently revealed episodes they consider to be the show’s weakest links. Even the stars themselves admit that not every installment hits the mark.

As “Countdown” inches closer to its finale, the show’s latest cliffhanger has spotlighted Jensen Ackles’s appeal to fans. For Ackles, audience investment could make or break the final moments of this captivating story.