In search of gasoline, the survivor Max Rockatansky ventures through the Realms of Peace. His journey takes an unexpected turn when he encounters a group of War Boys, led by Scabrous Scrotus ( Travis Willingham ), the psychopathic son of Immortan Joe ( Fred Tatasciore ) and the leader of Gastown. Scrotus and his team remove him from the road, steal his clothes, supplies, weapons, and car, and leave him in the desert. Max follows them, and challenges Scrotus to a duel on Land Mover. Max sticks a chainsaw in Scrotus' head, but that's not enough, and Scrotus pushes Max and his dog off the Land Mover. [35]
Together with the quadruped, Max obtains a weapon and some clothes from a dead Wanderer. As he wanders through the desert, Max finds a hunchbacked mechanic named Chumbucket ( Jason Spisak ), who calls him the Driver. Chumbucket takes Max to Scrotus, and tells him that he has built a car, the Magnum Opus, which has missing parts; Max agrees to look for those parts. Max must first liberate various territories from Scrotus' army: Jeet ( Josh Keaton ), whose fortress is an old lighthouse, and Gut Gash ( Liam O'Brien).), whose followers believe they will be protected from the flood in his ship. Max must destroy the Falcon, a massive gate protected by War Boys, with the help of the Magnum Opus when it is equipped with a Thunderpoon (a harpoon with an explosive). Max and Chumbucket must save Pink Eye ( Adrienne Barbeau ), a woman whose mechanical skills can compete with those of Chumbucket, from an invasion of Stank Gum, Scrotus' right hand.
Looking for the V8 engine for the Magnum Opus, Max finds out about a race in Gastown, and the winner will receive a Big Chief V8 engine. After defeating Stank Gum ( Yuri Lowenthal ) and the Tenderloin fighter in a Thunderdome duel, Max receives the engine and his concubine Hope ( Courtenay Taylor ). His joy is short; Scrotus brings him the prize and challenges him to battle. After being wounded by an arrow and thrown into a well, Max is saved by Hope, who takes him to Organic Mechanic and Scab (Orion Acaba) —known as Bloodbag. During the operation, Max has a hallucination in which he sees how his wedding to Hope is officiated by Chumbucket and a man with a dog's head. When he wakes up, he and Hope steal the Big Chief engine; they go to the temple of Deep Friah (Robin Atkin Downes), a fire worshiper.
At the temple, Hope asks Max to find his daughter, Glory (Madison Carlon), who has fled to Buzzard territory. Eventually he accepts, and travels to Underdune. After rescuing her from the Buzzards, Max returns to the temple to discover that Chumbucket, in a moment of jealousy, took the Magnum Opus to his home in the south. Max goes after him in a Deep Friah car, but finds out that Scrotus and Stank Gum got there before him. They tortured Chumbucket, and he revealed the location of Hope and Glory, and his connection to Max. Max kills Stank Gum and returns to the temple, where he finds the tortured bodies of the two women. Seeing Glory take her last breath, Max vows to take revenge on Scrotus.
Max returns to Gastown and finds out from Scab to find Scrotus' location. Max and Chumbucket find him and use the Magnum Opus to destroy the Land Mover, which is pushed to the edge of a precipice. Max intends to push the Mover into the abyss with the help of the Magnum Opus , but is stopped by Chumbucket, who considers himself the protector of this car. Max ignores him and hits the Mover at full speed; Chumbucket dies, and the Mover and Magnum Opus are destroyed. Scrotus escapes with Interceptor, Max's car from the beginning of the game, and challenges him. Max wins the battle, beheading Scrotus with a chainsaw. The game ends with Max entering the Interceptor, who puts a picture of his family on board the car and goes to unknown places.
