The real Deathlok then appears, helping Coulson to finally wrap up the rift.
To celebrate their success, Fitz and Simmons end up getting married, with Coulson officiating.
It’s the moment manyS.H.I.E.L.D.fans have been waiting for basically since the beginning of the series.

Credit: Byron Cohen/ABC
What came with the decision to do it during this hour?
JED WHEDON:And something that really rewards the fans.
We felt like we wanted the 100th to be for those people who had watched them all.
I don’t think there’s anybody who watches this show who is not rooting for this couple.
MAURISSA TANCHAROEN:Truthfully, it was about damn time.
After 100 episodes, they needed to get married.
Deke is the grandson of Fitz and Simmons.
Will they discover the truth?
What can you tease of their reaction?
BELL:There’s comedy gold.
To us, it was not just a cool reveal, but a way of seeing their love manifested.
Although we did get a happy ending at the end of the 100th hour, Coulson is still dying.
What can you tease of his journey moving forward?
WHEDON:I think it’s very clear in the episode of how he’s approaching it.
Though a lot of emotion does come out with Mike Peterson, he’s come to terms with it.
Project and everything that had been done to him.
I don’t think he wants to go through any of that again.
He’s ready for nature to take its course.
Some of that will play out.
WHEDON:He’s not excited for it.
Is this a season-ending arc?
Will we get resolution to Coulson’s fate by season’s end?
And does that all depend on whether or not the show is renewed?
We would never want to end with, “And there were never any stories after that.”
It’s a question of whether or not we will tell them.
TANCHAROEN:As Jed said, we’ll never end something without the potential for more story.
Hopefully people feel the same way.
We don’t want to leave them hanging with something that didn’t get paid off.
BELL:it’s possible for you to’t kill everyone.
Are you confirming there will be death in the finale?
WHEDON:We are not.
All we are confirming is that not everyone will die.
That’s our goal this year.
BELL: Those are your words.
BELL:Poetically it makes sense, the way you said it.
WHEDON:But there’s a lot of story left to tell.
We know that he’s not going to go down without a fight.
So there’s a lot of story left to tell.
BELL:It was really fun for us.
The idea of bringing J. August Richards back as the voice of that, as the first person S.H.I.E.L.D.
encountered in the series, was super exciting for us.
It came in the middle of stuff.
We had to make it special, but not just a one-off.
That became the tentpole that we built everything around.
WHEDON:The question is out there, so people can debate it forever.
Does that explosion and destruction of the monoliths mean the team can’t go through the time loop again?
WHEDON:They have some stuff to figure out.
No, the time loop could still be in effect.
WHEDON:And so far, we have not broken it.
WHEDON:That’s the game we’re playing is: Can we change the future we saw?
We know there’s differing opinions on that.
We know from that episode that Fitz believes time is fixed and therefore cannot be changed.
That question is still out there.
TANCHAROEN:That question may fracture the team.
BELL:The good thing about having a bunch of different people is lots of different points of views.
That’s tough for Yo-Yo, because that future has already come true for her in certain ways.
What can you say of her journey moving forward?
WHEDON:Yo-Yo’s in a terrible position.
That’s going to create some tension within the team.
And how will the team react to that piece of information?
Because we haven’t actually seen Yo-Yo tell anyone, right?
TANCHAROEN:No, we have not.
All your questions will be answered.
TANCHAROEN:Just watch the show.
[Laughs]
Daisy brings up a good point that there is no S.H.I.E.L.D.
WHEDON:The quinjet showed up with a few reinforcements, so that’s everything we have right now.
We’re going to have to see how they manage with such limited resources while still being hunted.
The one good thing they have is a completely hidden secret base.
WHEDON:They’re starting to express them a little bit, so that’s another wait-and-see.
Marvel’s Agents of S.H.I.E.L.D.airs Fridays at 9 p.m.