Marvel's Agents of SHIELD 'Inhuman' promotional poster
Marvel's 'Agents of SHIELD'Screen Rant

The upcoming episode of "Marvel's Agents of SHIELD" titled "Laws of Nature" is all set to premiere on ABC on 29 September. The first episode of the season is expected to elaborate upon the reunion of Fitz and Simmons as has been eagerly speculated by the fans.

The premiere episode's synopsis suggests that Agent Fitz (Iain De Caestecker) is determined to find his partner and his mission to find Simmons (Elizabeth Henstridge) will be a solo one. The rest of the team has given up, including Phil Coulson (Clark Gregg), and is busy rounding up Inhumans.

The teaser of season three, episode 1 titled "Laws of Nature" revealed that to find Simmons, Fitz will "go to extreme lengths."

The synopsis reads: "On the season premiere episode, 'Laws of Nature,' when Coulson and the team discover a new Inhuman, S.H.I.E.L.D. comes face to face with another organization searching for powered people. And still reeling from Simmons' dramatic disappearance, Fitz goes to extreme lengths to try to learn how to get her back."

In a previous interview, Henstridge talked about her character's disappearance and Fitz's determination to get her back.

"What happened was so crazy and there was no trace of her, that what do you do? I think that the whole team has tried and nothing has worked, so at some point you have to go, 'She's gone, we have to move on.' But Fitz refuses to do that," she told ZapIt.

The official synopsis of season 3, episode 2 titled "Purpose in the Machine" mentions that Fitz will turn up to Thor's people to seek help in understanding Kree stone that engulfed Agent Simmons (Elizabeth Henstridge).

The synopsis reads: "Fitz and the team enlist the aid of an Asgardian to unlock the secrets of the ancient monolith that swallowed Simmons (Elizabeth Henstridge), and Agent May (Ming-Na Wen) is at a crossroads in her personal and professional life."

Even though it is not mentioned in the synopsis, Thor and Lady Sif may turn up in the episode along with other Asgardians to help Fitz. However, there have been no such announcement yet.