The highly anticipated Stranger Things Season 5 finale, 'The Rightside Up,' concludes the series on New Year's Eve 2025. The episode features a lengthy runtime and depicts Vecna's attempt to merge Hawkins with the Abyss. Reports indicate significant character deaths, including Kali and Vecna, with Eleven making a sacrifice. The finale's conclusion has reportedly left fans divided, with differing accounts on how Vecna is ultimately defeated, involving characters like Joyce and Eleven.