A Smallville/Percy Jackson crossover challenge, a story where the Seven Demigods, (Frank, Leo, Hazel, Percy, Annabeth, Jason, and Piper plus Nico and Reyna meet the Justice League and have to form an alliance with each other to save the world.
1.) Has to involve all members of the league.
2.) The League meets both Camps.
3.) Set after the series finale of Smallville but before Bart Dies