Eckels goes into Time Safari Inc, a hunting time-travel business. As he enters, they all discuss how happy they are sinceKeith won the presidential election. After, they enter the time machine.
Climax
Dino POV:
They travel back to 60,002,055 years ago. Travis, the man in charge, informs them that they must stay on the path for the sake of the future. One step off can cause it to alter.
Falling Action
Their safari journey mission is to hunt the only T-Rex that they're allowed to. They spot the marked dinosaur by a tree and get their guns ready.
Resolution
Tyme Sefari Inc.
The T-Rex is right in front of them. Eckels is the first commanded to shoot. Instead, he runs away out of fear and steps on a butterfly without knowing.
Travis is very upset at Eckels for going off the path. He threatens to leave him and made him take the bullets out the dinosaur. They travel back to present time.
As they go back to their timeline, they realize it's different. Eckels finally noticed the cause for the change, the butterfly on his shoe. Travis kills Eckels because of his foolishness.