Time Trap

Time Trap is a 2017 science fiction action adventure film, directed by Ben Foster and Mark Dennis. Starring Brianne Howey, Cassidy Gifford, Olivia Draguicevich, Reiley McClendon, and Andrew Wilson, it tells the story of a group of students in a remote area of Texas searching for their missing professor. They then discover a mysterious cave by accident. While exploring the cave, the group experience a series of bizarre and dangerous events related to time and space distortion.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.