Learning about your "Past Life" can sometimes cause much distress. The team begins their infiltration of the Lighthouse in an effort to get Flint to recombine the pieces of the monolith that will get our heroes back home, to the past. Yo-Yo and Mack have been doing a tremendous job of holding down the fort. But when Yo-Yo learns of an Inhuman that is being tortured, she knows she has to do the right thing and rescue the mysterious stranger. Enoch stays behind on the Zephyr hit the power and open the portal but when he is discovered, they all know they have limited time to accomplish their goal, so Deke goes to help. Kasius knows that his chances of stopping SHIELD are slim, so he uses a devastating elixir to lay his last cards on the table. When Yo-Yo finds the Inhuman she was looking for, she discovers that it's a future version of herself that has been held, tortured, and mutilated to use for information by Kasius for all these years. She also learns that if she wants to save the world, she may have to do something unthinkable. Time is up, and an explosion signals either victory for SHIELD or the end of human civilization. Jay and Josh explore their odium complex on this week's Agents of S.H.I.E.L.D.: Case Files.