In a world gone mad, only the savage survive.
In the wasteland it's every man for himself. Playing as reluctant warrior, Mad Max, you must embark on a treacherous journey to build the ultimate war vehicle, and leave the madness behind.
Source: The Game Website.
In Mad Max, the player takes on the role of titular character Mad Max. He is assisted by another man called Chumbucket. Chum mainly works with Max to build and upgrade the Magnum Opus vehicle. Many choices are given in the game, such as either playing silently or aggressively. Max can get guidance from Chum about how he can complete his objectives strategically.
Source: Wikipedia, "Mad Max (2015 video game)", available under the CC-BY-SA License.