Laura and Harrison have the picture-perfect romance built on the foundation of a shared love of music. After a deadly accident, Laura gets the chance to save the love of her life when she discovers that their mixtape can transport her back in time.

Famed astrophysicist Neil deGrasse Tyson provides clarity for the vision of the cosmos as he voyages across the universe with never-before-told stories that delve into the scientific concepts of the laws of gravity and the origins of space and time.