Taken from DocAzrt over at the The TailSection.
The producers have said something in episode six of the arc will be blow the audiences minds, to the extent that some will say the show has “Jumped The Shark”. What is this plot twist? How could it possible polarize fans. Is there a murmer out there of what this may be? The answer is yes. And here, I have to warn you that the information is a little on the shady side but the prevailing rumor is that Jack will decide to stay with the others and his decision will cost another lost-a-way their life. A turn to the dark-side for Dr. Jack? That would certainly be a lot to swallow.Source: The TailSection