Forty-five years after George Miller introduced audiences to Mad Max, the auteur may have finally hit the end of the road through the postapocalyptic wasteland unless he finds some high-octane gasoline soon.

The revered filmmaker’s Furiosa: A Mad Max Saga bowed to a disappointing $32 million domestically for the four-day Memorial Day weekend and $36.5 million overseas, diminishing hopes for Mad Max: The Wasteland, another Max installment Miller has been toying with for years.

Miller and Nico Lathouris wrote the scripts for both The Wasteland and Furiosa as part of the development process of Mad Max: Fury Road, the 2015 Warner Bros. film that became a surprise awards season juggernaut, winning six Oscars, and which became an instant action classic. The Wasteland would follow Max Rockatansky in the year before Fury Road, and is said to involve a young mother — and (naturally) include plenty of action.