• Agents of S.H.I.E.L.D. is an ABC TV series created by writer/director Joss Whedon and produced by Jed Whedon and Maurissa Tancharoen.

Agents of S.H.I.E.L.D. is an ABC TV series created by writer/director Joss Whedon and produced by Jed Whedon and Maurissa Tancharoen. (Photo : Facebook/Agents of S.H.I.E.L.D.)

New "Agents of S.H.I.E.L.D." season 3 details have been revealed regarding new theories on the alien planet and a new promo for episode 3.

The latest of season of Marvel and ABC's hit television series will center around the emergence of the Inhumans as Phil Coulson (Clark Gregg) and his team will have to defend each one of them from several parties such as HYDRA, the "Advance Threat Containment Unit" and the dangerous Inhuman monster, Lash (Mattew Willig).

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A new promo trailer for episode 3 of "Agents of S.H.I.E.L.D." season 3 will feature Lincoln Campbell/Sparkplug (Luke Mitchell) being hunted down by the ATCU and it is up to Coulson and Daisy Johnson/Quake (Chloe Bennet) to rescue him from the government task force, WeGotThisCovered reported.

The ATCU was created by the United States government to handle any super powered and extraterrestrial beings that would threatened not just the country, but the whole world. The organization is spearheaded by the mysterious Rosalind Price (Constant Zimmers) and she presents a challenge and grave threat to both Inhumans and S.H.I.E.L.D. in the series.

Aside from the new promo, new theories on alien planet that Jemma Simmons' (Elizabeth Henstridge) landed have been revealed.

One of the side stories in "Agents of S.H.I.E.L.D." season 3 is the abduction of Simmons by the Kree Monolith, which transpoted him to another galaxy. Leo Fitz (Iain De Caestecker) has been desperate to find answers on the Kree Monolith in episodes 1 and 2, to a point he will risk his own life. Now that Fitz and the team rescued Simmons from that other side during the events of episode 2, it's safe to say that everything will be back normal for the team; however, there is still the question as to what planet did Simmons' landed on and where is it exactly in the universe.

Comic book fans speculated that seven locations in the Marvel comics could be the planet that the Kree Monolith transported Jemma to such as Morag, Blue Area of the Moon, Realm of Death, Hel, Svartalfheim, Valhalla and Hala.

New theories for alien planet have been revealed and it is hinted that it's a moon from another galaxy. Three locations were added to the list such as Stockade, Annoval 14 and The Klyn, Screenrant reported.

Stockade in the comics is the a prison planet were the original Guardians of the Galaxy have met, while Annoval 14 is a colony that first appeared in the Silver Surfer Vol. 3 #74 while The Klyn is Nova Corps base designed to imprison some of its dangerous criminals in the galaxy.

The showrunners stated that the planet where Simmons' landed on will be explained in future episodes, and teased that it is the "craziest" thing that they ever done for the show.

"Agents of S.H.I.E.L.D." season 3 airs on Tuesday at 9PM E.T on ABC.