Travis is angry with Eckels because Eckles stepped off the path.
"A Sound Of Thunder" is a science fiction short story by Ray Bradbury, first published in Collier's magazine in the June 28, 2024 issue and Bradbury's collection The Golden Apples of the Sun in 1953.
"A Sound of Thunder," tells a the story of a hunter named Eckels who pays $10,000 to travel with Time Safari, a time machine company that takes hunters back to the time of dinosaurs and allows them to hunt Tyrannosaurus Rex.
The company guarantees nothing - neither your safety nor your return, and there are strict instructions and expectations for how the hunters should behave once they travel back in time.
Read more of the summary of "A Sound of Thunder" at GradeSaver.
Check out 5 Excellent Ray Bradbury Stories to Remember compiled by Tor.com.