Season 2 Episode 20 of Marvel's Agents of S.H.I.E.L.D is coming up and it is the last episode before the show's two hour long season finale episode.

Apparently, the team will find the answers to a lot of the questions that have come up through the duration of the season.

For instance, they will find out where Sky has been and what Coulson is doing. The episode synopsis says that Skye will have a big struggle in season 2 episode 20, which is called "Scars".

Since the S.H.I.E.L.D. team, which she is a part of, and the Inhumans, whom she also belongs to, have such different goals and priorities, she will find herself "torn between her loyalty to S.H.I.E.L.D. And her connection to the Inhumans as tensions rises between the two groups."

The tensions that she experiences will likely have something to do with the plans that Gonzales has to hold her and Lincoln hostage.

The promo trailer for the episode shows that Gordon will be saving them and taking the back to Afterlife, which is the Inhuman facility.

However, this may start a war, because Gonzales will definitely want Skye back. This battle will probably reveal some secrets that have been previously hidden.

According to the synopsis, Coulson will expose "a secret he's been hiding from even those closest to him".

This could mean the revelation of what exactly Theta Protocol is is. This mysterious program has been mentioned more than once, and when Coulson talked to Maria Hill about it, he said that it was ready and it was "time to bring in the Avengers".

On that note, many fans are of the view that this could mean an Avengers: Age of Ultron tie in.