There is no way to get your tax returns back from TurboTax. The only way is to get copies or transcripts from the IRS and the state. A transcript contains the information from your tax return, but it is not in the format of the actual forms. See the following link on the IRS web site for more information.
Topic 156 - Copy of Your Tax Return – How to Get One
Check your state's tax web site for information about getting a copy of your state tax return.
