You would need to submit your Form 1040 along with any W-2's,1099's. There may be additional documents that need to be mailed depending on your tax situation. When you print out your tax return there will be specific instructions as to the exact forms required to mail.
Here is an FAQ with additional instructions on how to file by mail in the TurboTax CD/Mac software:
https://ttlc.intuit.com/replies/3401483