What is Gilbert planning at the end of the story "Another Place, Another Time"?

At the end of the story, Gilbert planned to time travel and get back his father by travelling to another dimension in space.

Explanation:

Another Place, Another Time is a short story by Cory Doctorow that revolves around a young boy named Gilbert. The plot of the story also deals with time travel and how everything can be changed back to the way it was with this mechanism.

Gilbert was a young boy whose father usually leave him for the seas. And one day, he learned of his father's death which shattered his world. Interested in physics since childhood, he began learning more about the time travel. In the end, he learned how to time travel and decided that there can be a way to get back his father.

"And out there, somewhere, there  was time like space and space like time. And somewhere there  was a father on a ship that weathered a storm rather than  succumbed to it."

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