The plot involves the Justice League facing a huge, universe - threatening crisis. They have to team up with other heroes and work together in unexpected ways to save the day.
I'm not sure specifically as there could be many 'justice graphic novels' out there. It might be about the concept of justice in a visual and narrative form, perhaps showing stories of heroes or characters fighting for what's right in a fictional or semi - fictional world.
Since I don't know the specific 'justice graphic novel', it's hard to say. But it could have characters like a fearless detective, a wrongly accused person fighting for their innocence, or a superhero - type figure who defends the weak and enforces justice.
It often features the adventures of young superheroes. They face various challenges, from battling super - villains to dealing with personal growth issues within their team.