Jimmy G. Fungus is a young mushroom trapped in the lowest pit of existence: The Mushpit—a grim underworld where the light never reaches, filled with lost souls. Drowning his sorrows in a dingy bar, Jimmy has long abandoned his dream of escaping to the surface. One night, a mysterious strange cat confronts him to the life he’s wasted and the dreams he’s buried. Jimmy makes a choice—he will leave The Mushpit behind, no matter the cost.