https://medium.com/@Katheri31498734/full-episodes-arrow-season-8-episode-8-crisis-on-infinite-earths-part-4-of-5-868c3a19bf71
https://medium.com/@Katheri31498734/the-cw-arrow-season-8-episode-8-official-tv-series-7772dca4f80a
https://medium.com/@Katheri31498734/arrow-season-8-episode-8-full-episodes-the-cw-211e23eb9d6f