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Marvel's Agents of S.H.I.E.L.D.

A New Threat

02:21 | 05.09.17 | TV-14 | CC

The Superior tells a jilted Aida about his plan involving the Darkhold. 'My plan will rebuild the world that you have grown accustom to, one where Inhumans are hunted.' From Marvel's Agents of S.H.I.E.L.D. Season 4, Episode 21: The Return. Watch all-new episodes TUESDAYS 10|9c on ABC.

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Chronicom Hunters Invade the Lighthouse

As if S.H.I.E.L.D. didn't have enough to worry about already.

And Sarge is responsible.

Deke Has a Secret Lab in The Lighthouse

And Fitz isn't happy about it.

Daisy's Showdown With Sarge Gets Emotional

Neither of them were expecting that.

If Sarge Has Coulson's Memories, Does He Remember May?

Watch their showdown here.

May Doesn't Remember Shooting Sarge

Daisy, Yo-Yo, and Agent Piper think there's more to this situation.

Mack Asks Yo-Yo for the Chance to Reconcile

Is she willing to consider it?

Daisy's Hail Mary Against the Shrike

It all comes down to this.

Izel Isn't Telling the Truth

She's coming to Earth to destroy it.

Sarge Meets Coulson's Old Team

It's not exactly a happy homecoming.

Fitz Finds Out He Missed His Own Wedding

And that's not all.

The Crew Finds Fitz

But there's a catch.

Snowflake Takes on Melinda May in Hand-to-Hand Combat

Not usually a very good decision.

Sequoia's Footage of Getting Boba and Being Rescued by S.H.I.E.L.D.

Guest starring co-creator and executive producer Maurissa Tancharoen.

Enoch and Fitz Lose Everything in Kitson

This despicable planet teaches Enoch a tough lesson.

Sarge's Crew Gets Away

But not before May gives them a good pounding.

Enoch Saves Fitz's Life

His quick thinking saves the innocent crew as well.

A New Villain Emerges

And his face looks a bit familiar to everyone at S.H.I.E.L.D.

Mack Meets a Potential New Recruit

Dr. Benson doesn't seem interested -- until Mack says just the right thing.

Daisy's Search Gets Rough

Nothing she can't handle, of course.

Daisy and Ghost Rider Finally Team Up

The badass duo use their powers against relentless LMDs.

Mack and Yo-Yo's Emotional Outcome

'This world is ending and I don't want you to end with it,' pleads Yo-Yo.

Aida's Flaming Final Battle

Coulson takes a huge risk to try and defeat Aida once and for all.

S.H.I.E.L.D. Says Goodbye to Robbie

Robbie opens a portal with his chain and leaves with the Darkhold.

Sneak Peek Season Finale: Can Ghost Rider Beat Aida?

Rider's drawn to her because she's made of the same matter as the Darkhold.