Help! Existing project downloaded from asset store

Need some help, I have bought a project from asset store, but when I open it in unreal there is only camera in main editing screen, all the folders are there (with everything inside of them) but no scene appears in main window.

Quite new to unreal engine, so wonder if I am missing something I should do when opening this project. I assumed it would have had the scene fully populated and not just in folders.
The item I have bought is Shark attack VR.