This is mostly "flashbacks," which mean re-hashed or retread materials, clips from previous Tom and Jerry cartoons. I hate it when that happens, whether it's The Pink Panther cartoons, or The Three Stooges short films....whatever....it's a lazy way to make a "new" animated or short film. For devotees of that particular character or characters, it's a total waste because we've seen this stuff before.
In this cartoon, the "angle" to use this old material is a new book that Jerry has published called "Life With Tom," a play-on-words of the late 1940s film, "Life With Father," perhaps.
Anyway, as Tom thumbs through this best-selling book, we get some of Jerry's favorite stories of the two rivals going at each other. A fishing trip comprises one story; a Thanksgiving Day is another is the day Tom tied Jerry's to some miniature railroad tracks. It's all good material, unless you've seen it before. The ending - which at least is new - makes Tom change his mind about the book.