In the city of Stern Bild, individuals with special abilities are known as NEXT, who may use their powers for either heroism or villainy. A select group of NEXT appear regularly on Hero TV, chasing criminals to bring attention to their sponsors and earn Hero Points, all while competing to become the next King of Heroes.
Kotetsu T. Kaburagi, also called "Wild Tiger," is a veteran hero whose performance has recently declined, partly because of his difficulty cooperating with other heroes. After a lackluster season where most of his peers far outperformed him, Tiger is partnered with a new hero who goes by his real name—Barnaby Brooks Jr.
Barnaby, nicknamed "Bunny" by his carefree partner, wastes no time making it clear that the two could not be more opposite. Even though they mix like oil and water, Tiger and Bunny must learn to work together, both for their careers and to confront the growing dangers lurking within Stern Bild.