WARNING: This article may contain spoilers for Crisis on Infinite Earths. Read at your own risk.
The fourth and fifth part of Crisis on Infinite Earths will be arriving within a few weeks and it's clear that the remaining heroes still have more problems to face. The worlds were now gone, countless lives have been lost, and only a few people survived. Since this would be the final installment of the crossover event, many were eager to see who could and couldn't make it out alive.
In the new promo or Crisis on Infinite Earths, it looks like The Flash, Supergirl, White Canary, and others are desperate to take back what they have lost. These heroes are unified, but then, things wouldn't be that easy for them since they had to deal with the threat brought by the Anti-Monitor. There would be some surprises as well and some backstories will be revealed.
Perhaps, the exciting part in Crisis on Infinite Earths is that Olive Queen a.k.a. Green Arrow returns, but he has become something else. It only makes sense the character appears here since it's basically an episode of Arrow. Also, Emily Bett Rickards' final episode of the original Arrowverse series revealed Oliver was still out there. So, the question now is how he survived, and where he was all this time.
During the early run of the crossover event, Oliver died. While most viewers were aware he'll be killed off at some point, they didn't expect he'll be gone that soon. Even The Monitor couldn't believe it, he knew Oliver will die but he was shocked he died that way. Oliver's death is a bitter moment for everyone, he did a heroic act until his dying breath.
In the fourth part, which serves as the penultimate episode of the crossover event, the Paragons are searching for a way to escape after being stuck in the Vanishing Point. Their situation becomes even worse with The Flash's disappearance, but they found hope when Olive appears and reveals he turns into something else. The Monitor and Anti-Monitor origin stories will also be revealed in this episode.
In the fifth and final part of Crisis on Infinite Earths, the synopsis didn't give much detail, aside from teasing: "Worlds lived, worlds died. Nothing will ever be the same." This installment is technically a Legend of Tomorrows episode, but the specific connections of the crossover events to the series are yet to be seen. But since this is the ending, there'll definitely some twists and turns here.
Crisis on Infinite Earths part four is coming on Tuesday, Jan. 14 at 8 PM, and will be followed by the fifth part on the same date at 9 PM on The CW.