: This is where Eleven learns to channel her anger. Without the lessons she learns from Kali (Eight), she wouldn't have the strength required for the massive feat she performs in the season finale.
You can watch " The Lost Sister " exclusively on Netflix , where the entire series is hosted. Since it is a Netflix Original, it isn't legally available on other streaming platforms like Hulu or Disney+. Watch Stranger Things S02e07
Here is a helpful guide (and a bit of a "story") on how to approach this unique chapter of the saga. The "Departure" Episode : This is where Eleven learns to channel her anger