This episode kicked ass! There's so much to talk about!
Cons:
So, the main plot is that Coulson, Fitz, and Robbie are stuck in a different dimension, and they can see everybody else but nobody can see them. The whole team comes together to find a way to get them back. I loved almost everything here, but you know what's annoying? Jemma wasn't there for any of it. She was off in a little subplot, which I didn't mind in terms of the subplot's content, but... I wanted her to be there! I wanted her to fight to get Fitz back just like Fitz fought to bring Simmons back! It feels like a bit of a wasted opportunity, if we're being honest. But that's a nitpick.
Pros:
I'll start with Simmons' subplot really briefly. Basically, she is brought to Senator Nadir's brother, who is encased in rock. She uses her expertise about terrigenesis to help free him from his imprisonment. Of course, Jemma is kept in the dark about who this guy is, and just as she starts to free him, she's ushered away. I love the possibilities, here. We know that Nadir is blackmailing Mace, and we know that her brother has been trapped for months. But Jemma knows none of this, and it seems like Nadir's brother might be a pretty cool guy. He certainly seemed thankful to Jemma for helping him. I can't wait to see where this goes.