Cast out of his home as a boy by abusive parents who feared his emerging super-powers, Simon is taken in by Dr. Timothy Zim, the headmaster of the Apex Academy, a school for teenaged superheroes. Zim promises to train Simon, on the condition he keep his identity secret. Simon agrees to this as well as dating Zim's daughter, Clara, who is struggling with her powers following a breakup with Ethan, a shape-shifter and the most popular student at Apex.
After a humiliating year dating Clara, matters get worse for Simon when Ethan returns home early from his apprenticeship with the League of Young Defenders, the top superhero team.
With days left until Clara's 18th Birthday, Simon is at a crossroads: try once more to make things work with Clara or leave to become the hero he knows he's destined to be.
