When Gloria took a waitressing job at Midnight Burger outside of Phoenix, she didn’t realize she was now an employee of a time-traveling, dimension-spanning diner. Every day Midnight Burger appears somewhere new in the cosmos along with its staff: a galactic drifter, a rogue theoretical physicist, a sentient old-timey radio, and some guy named Caspar. No one knows who built Midnight Burger or how it works, but when it appears there's always someone around who could really use a cup of coffee.