Mr. Sunshine follows the story of a male protagonist who works in a sports arena in San Diego, California. It is a workplace comedy that revolves around the sitcom-like events that unfold in the arena.

John Shaft Jr., a cyber security expert, enlists the help of his father, the legendary John Shaft, to uncover the truth behind his best friend's death. As they dig deeper, they discover a conspiracy that threatens to destroy everything they care about.