Stranger Things: 20 Best Moments

This is a riveting, suspenseful scene where the kids trap a possessed Billy in a sauna to try and force the Mind Flayer out of his body.

Billy fights with himself, as well as Eleven, leading to a pretty chaotic showdown between them in one of the most intense sequences in the show, where performers were literally pushed to their limits.

The acting is brilliant here across the board, especially by standouts Millie Bobby Brown and Dacre Montgomery, who both had to do some challenging physical stunts.