An American Pickle movie plot

In 1920, laborer Herschel Greenbaum, an immigrant to the United States, accidentally fell into a jar of pickles, which were marinated for a hundred years, maintaining their perfect shape. One hundred years later, Greenbaum woke up in Brooklyn, New York, not a little old. He goes to find his family, only to find that only great-grandson Ben Greenbaumremains. Ben Greenbaum is a mild-mannered programmer, and Herschel Greenbaum can't understand him at all. Herschel wanted to start the kimchi business again, but the grandson completely disagreed, but the old man succeeded   .