Drone Range from the Meta Sample Discover

Hello
I have a question about “Drone Range” from the Meta Sample Discover.
I wanted to use the demo to familiarize myself with mixed reality programming. 
Unfortunately I can't find any levels for the game. 
Can someone explain to me how I can find an entry point here. 
Everything is probably loaded dynamically.  Does anyone here have experience with the demo.
THX Jörg