In 1985 DC Comics in the US had taken the commercial decision to unify the complex and contradictory character story arcs from its various strips such as Superman, Batman and Green Lantern. The resultant crossover series, Crisis on Infinite Earths, saw the heroes attempting to align all of the surviving Earths into one single reality that would then make DC Comics continuity more straightforward so as not to confuse potential new readers.
In 1987 Grant Morrison and Steve Yeowell's Zenith, a politically-engaged superhero comic strip originally published in British weekly 2000 AD, brought together a group of superheroes from across multiple realities to battle a mysterious Lovecraftian threat. This threat is intent on aligning all the universes, or 'Alternatives', into one, simple universe. Rather than reduce the complex and the inconsistent into the singular, the heroes of Zenith attempt to defend and maintain multiplicities. They meet on a world in Alternative 23.
The exhibition is an evolution of Alternative 23 at IMT Gallery, London, curated by Mark Jackson and supported by the Arts Council England and the Goethe Institut.