Detailed Instructions: Given a premise, an initial context, an original ending, and a counterfactual context, the task is to generate a new story ending aligned with the counterfactual context and as close to the original ending as possible. Each instance consists of a five-sentence story. The premise is the first sentence of a story, and the second sentence, which is the initial context, provides more information about the story's context and the story's general plot. The original ending is the last three sentences of the story. Also, a counterfactual context is a slight modification to the initial context. You should write a new story ending that edits the original story ending as little as possible to regain coherence with the counterfactual context. To sum up, you should write the last three sentences of a story based on the premise(first sentence) and the counterfactual context(second sentence) of the story.
Q: Premise: Matt wanted to go back in time. 
 Initial Context: He went to the library to look up books about time travel. 
 Original Ending: He read all the books he could find. Then he decided to create his own time machine. He never succeeded because time travel is probably impossible. 
 Counterfactual Context: He went to the store to buy all the movies about time travel.
A:
He watched all the movies he could find. Then he decided to create his own time machine. He never succeeded because time travel is probably impossible. 