In an effort to find a way home, Peter journeys to the Other Side to confront Walternate. However, his venture proves more dangerous than expected. Meanwhile, Olivia receives a dire premonition from an Observer.
I don't really know what to feel when the observer told Olivia that she has to die. If Peter really is in the wrong timeline then I couldn't care less. But if he is and Olivia is the person that we know of, then NOOO!!! OLIVIA CAN'T DIEEEEEE!!!