Spoilers about the upcoming 'Under the Dome' episode entitled "The Fall," reveal some shocking revelations concerning "Big Jim" Rennie and what really happened to his wife Pauline. Episode 10 of Season 2 will air on CBS in its regular timeslot of 9 pm on September 1.

Recapping the show, the people of Chester Mill are gearing up to face the imminent battle with climate change under the transparent and indestructible mystery dome.

Now, in the upcoming episode, fans will finally get a chance to see what they've all been waiting for, a reunion between Jim and Pauline. Furthermore, the truth about the reasons behind their separation in the first place will also stand to be revealed when the segment airs.

The popular TV series, which is based off a Stephen King novel of the same name, is considerably different than the book version. One of the major changes from the book to the TV adaptation, is that there are fewer characters. Instead of removing many of the prominent figures in the storyline, producers of 'Under the Dome' chose to combine some of the characters into individual figures. What this did was effectively retain plot points, and at the same time, strengthen a character's impact in the storyline.

However, it's worth mentioning that there have been additional plot twists added to the television version, probably to suit the style of popular TV shows these days.

Beyond all that, fans want to know whether or not the people under the dome will ever figure out what's up with the Red Door. The passageway has been an interesting and ominous factor on the show since it was revealed in Episode 9.

Luckily, spoilers say that viewers and 'Under the Dome' characters alike will find out about the mysterious Red Door on the upcoming tenth episode.