If you have Foreign Earned Income then you will need the TurboTax online edition of Deluxe or higher. If your income is only from a US source then start with the Free edition and upgrade as required when entering your tax data.
Go to this TurboTax website for the 2017 online editions - https://turbotax.intuit.com/personal-taxes/online/
Any of the TurboTax desktop CD/Download editions support entry of Foreign Earned Income.
Go to this TurboTax website for the 2017 desktop CD/Download editions - https://turbotax.intuit.com/personal-taxes/cd-download/