Help! I am working on a small project that I am having issues with on restarting the level on collision with another object in the scene.

I am very new to the coding world but god, do I want to learn. So in this instance I am expanding the "Roll a Ball" game offered as a tutorial from unity. By expanding, I mean that the level is long and intricate and the track has no borders meaning you can fall off. Under the track is a large plane that is bright red signifying death itself. My question is, how do I get the level to restart when the ball comes in contact with the DeathPlane? In the scene my the player is "Player" and the bright red plane of death is "DeathPlane". I really need help because I can't find a spot on answer anywhere, thank you!