Per Wikipedia (LINK):
On July 9, 1941, President Franklin D. Roosevelt, influenced by advocacy from Jean Monnet who was then in employment by the United Kingdom in Washington DC, ordered his Secretary of War, Henry Stimson, and his Secretary of the Navy, Frank Knox, to prepare a plan for the “overall production requirements required to defeat our potential enemies.”
After completion of the plan, it was leaked to U.S. Senator and prominent isolationist Burton Wheeler of Montana who in turn gave it to the equally isolationist editor of the Chicago Tribune, Robert R. McCormick who published it on 4 December 1941, just three days before Pearl Harbor.
There are three ways you can get copies of the Victory Plan.
1.) Go to the National Archives II in College Park, MD and look in RG 165, NM-84, Entry 422, WPD General Correspondence, Folder 4494-21 (roughly) which contains War Plans Division, “Ultimate Requirements Study: Estimate of Army Ground Forces”
2.) Go in person to the FDR Library and look in The President's Secretary's File (PSF), 1933-1945 – Series 1: Safe File – Box 1 – Folder American-British Joint Chiefs of Staff – this is online in the FRANKLIN Digital system, and you can see that the folder contains a partial copy of The Victory Plan, which I have downloaded and excerpted (4 MB PDF).
3.) Last and what I did, was to find a copy of American War Plans: 1919-1941 by Steven T. Ross (1992). It's a five volume collection that reprints xeroxed images of said plans. The Library of Congress Card Catalog number is D769.2.A84 1992 for reference. Volume #5 is the one that has the Victory Plan (as well as Rainbow-5).
EDITORIAL NOTE: I've split the Victory Plan into two parts, A and B, because Part B, the AAF requirements (aka AWPD-1) are so huge that they form 60% of the Victory Plan itself. Also, this is not a complete copy – the original plan was about 300 pages or so; this copy is about 135 pages – there's a lot of maps and fold out charts that were extremely hard to reproduce for the copy that I found my copy of the Victory Plan in.
Joint Board Estimate of United States Over-All Production Requirements [Part A] (The “Victory Plan”) 11 September 1941 (22.5 MB PDF) – This includes the Report for FDR, the Navy Program and the Ground Forces Program.
Joint Board Estimate of United States Over-All Production Requirements [Part B] (AWPD-1) – 11 September 1941 (36.3 MB PDF) – This huge report is officially “Section II. Part III, Appendix II Ultimate Requirements Air Forces - Supporting Study” of the Victory Plan, but it's so huge that it effectively becomes it's own plan called AWPD-1; forecasting the future independence of the Air Force from the Army. It's so big, I've kept my former c.2009 version up HERE in case I destroyed a segment while reformatting from the 2009 version to the 2023 version.
Chicago Tribune – F.D.R.’S WAR PLANS! – 4 December 1941 (22.7 MB ZIP) – This is the notorious Chicago Tribune leak of the Victory Plan a few days before Pearl Harbor. It's remarkable in how much it leaks the main thrust of the Victory Plan; along with providing hard key facts of the plan. If you had to condense a 300~ page plan down into just a few pages, this is how you'd do it.
An Unknown Future and A Doubtful Present: Writing the Victory Plan of 1941 (HyperWar link) (3.2 MB PDF)
Engaged in Debate: Major Albert C. Wedemeyer and the 1941 Victory Plan in Historical Memory by Major Neil B. Stark, US Army – 2017 (458~ kb PDF)
“Navies can not be improvised”: World War II U.S. Naval Requirements and the Victory Program by Daniel J. Simonsen – 13 May 2022 (2.2 MB PDF) – This monograph details how the USN arrived at it's end requirements for the Naval portion of the Victory Plan.
Who Leaked FDR's War Plans? by Joseph Connor – 26 November 2018 (History Net Link) – This article details the firestorm that was raised following publication of the plans in the Chicago Tribune, and puts a 65-75% chance that Hap Arnold was the leaker (my estimate, not the author's) of the Victory Plan.