storyline three button on one slide then go to previous slide

Hi, Brian, and welcome to E-Learning Heroes! ✨

Thank you for the screenshot and the details of what you're trying to achieve! 

You can use Storyline's built-in states to trigger an action when all the slides have been visited. On your slide with three buttons (the main menu on the first path), add a trigger to jump to the first slide if all the buttons are in the visited state:

I am attaching a sample .story file here. Let me know if this works!