Jemma | Phil
Back in the spring, after I lost my arm, the obelisk sucked you into an alternate world. You were gone for months. Fitz managed to get you back eventually.
Turns out the world was one where HYDRA had been sending people for centuries to appease an ancient evil. Since you managed to come back, HYDRA wanted to try and figure out how to bring the creature back. So they kidnapped you and Fitz. HYDRA (with Ward as its head) was going back to the other world. Ward went through the portal with Fitz and some other HYDRA agents. I jumped off a plane and into the portal to stop him and bring back Fitz.
Long story short, killed Ward in the other world and came back with Fitz.