Agents of S.H.I.E.L.D., Season 5

[Yo-Yo meets her future self]

Future Yo-Yo:
I waited so long to see myself again, still with hope in my eyes.

Yo-Yo:
How are you alive?

Future Yo-Yo:
They killed me, brought me back to take my blood, my DNA, then again and again for years. They revive me when they want, kill me when they don't.

Yo-Yo:
What? H-How? How many times?

Future Yo-Yo:
I held on to the thought of this moment.

Yo-Yo:
No. This is wrong.

Future Yo-Yo:
But this time, when they asked me how our team fought back, I tried to give them as little as I could. But I knew you were close. You and Mack. Mack. He's still alive. Hold him for as long as you can.