Stranger Things Season 1 - The Monster
While searching the Monster , Nancy and Jonathan find a wounded deer. As they prepare to kill it out of mercy, it is suddenly dragged away in the shadows. Upon following a trail of blood, Nancy comes across a fleshy portal in the base of a tree. She crawls through to the Upside Down, witnessing the creature feasting upon the deer. She tries to quietly flee, slowly walking backwards; she accidentally treads on a tendril, making noise and alerting the creature to her presence. The creature gives chase, and Nancy panics. Hearing her screams, Jonathan looks for her as the portal begins to seal up.
Nancy follows Jonathan's voice and escapes the Upside Down, coming back through the portal in the tree and re-entering the human world.
You can see this scene at the end of Episode 5 and at the beginning of Episode 6 - The Monster.
I hope you like this small scene and of Course I would be pleased to get feedback.