"Agents of shield" is finally returning now that "Marvel's Inhumans" has ended. "SHIELD" began with the "Avengers" and other associated superhero films, spinning off with Clark Gregg reprising his role as Agent Phil Coulson who was killed off in "The Avengers" and brought back to life for the series. The series has undergone several changes in tone, but season 5 is described as being the biggest switch in genre they've done so far.

In addition to Gregg, the series stars Ming-Na Wen (Melinda May), Chloe Bennet (Daisy Johnson/Quake), Iain De Caestecker (Leo Fitz), Elizabeth Henstridge (Jemma Simmons), Henry Simmons (Alphonso "Mack" MacKenzie), and Natalia Cordova-Buckley (Elena "Yo-Yo" Rodriguez).

Confusion and alien attacks in space

Season 4 ends with a shot of Coulson waking up confused in space, leaving fans to wonder what exactly is happening. ABC's sneak peek reveals quite a lot of confusion as the team members struggle to find each other again and determine how they got into space. The sneak peek begins with an unknown man swimming and going about a normal day, until his shadow is seen changing, leading to the speculation that he's an alien in a human suit. The same man leads a team into the diner the SHIELD team was last seen in, until a seemingly frozen Coulson is wheeled out into a truck. It's teased that not all of the SHIELD team will make it into space as one "wasn't on the list" so was left at the counter.

This leads to a lot of crazy happenings as Coulson, May, Simmons, and other unseen members are faced with a Kree-looking rock that dissolves, sending them to a ship in space. Coulson meets a man named Virgil who gives several cryptic teasers while the team slowly reunites. He introduces the alien attacks as the Vrellnexians -- or as he calls them, "roaches," -- while also describing himself as "one of the true believers." Elsewhere in the clip, Yo-Yo and Simmons find several mummified bodies and Agent May has to pry her leg off of a machine.

Unseen are Daisy and Fitz, with the latter referenced by Virgil as unable "to make the trip." Virgil tells the team that he has been studying them for years right before he's yanked back into the darkness and an alien attacks them before he can share more.

Other teasers for the premiere

Elizabeth Henstridge teases that the premiere is very scary and has a lot of jumpy places, also noting that season 5 is aesthetically different from what they've done in the past.

The characters will be seen reacting differently, giving them a newfound crisis. Iain De Caestecker adds that the show has reinvented itself this season, and will have the biggest switch in style the show has ever done. Jeph Leob, Marvel's Head of TV, shared that a significant event will take place for the series' 100th episode, with the additional tease that the team has to get out of space somehow.

New characters will also be meeting the team while in space. Deke (Jeff Ward) is described as a roguish scavenger and a survivor, being both an asset and someone that will be difficult to trust. Tess (Eve Harlow) is resourceful, the type of person that is self-sufficient in tough situations, and someone that has remained hopeful.

Flint (Coy Stewart) has had to grow up quickly, but he's determined to be the best he can be, and is also based on a character from the "Inhumans" comics. Grill (Pruitt Taylor Vince) is described as gruff and a taskmaster, with an unforgiving temperament to those under his command.

"Agents of SHIELD" will return Friday, December 1 with a two-hour premiere. On December 8, it will go back to its regular timeslot following "Once Upon a Time" on ABC.