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.

Premise: Darren milked the cow. 
 Initial Context: The cow kicked over the bucket of milk. 
 Original Ending: The milk spilled out before Darren could catch it. Darren drove to the store. Darren bought a gallon of milk from the store. 
 Counterfactual Context: The cow kicked over Darren and he could not get back up.
Darren called for help. Darren's son drove him to the hospital. His son bought a gallon of milk from the store. 