A Superhero's Assault - The Legacy Superhero, #4

Determined to rescue his kidnapped grandfather, Jack McDonald (Trickshot) sets out to assault the headquarters of the spy organization Icon. Along the way, he allies with three agents from an opposing spy organization, whose true agenda is a mystery to Trickshot. And that's before Christina Madison, his former enemy, defects from Icon and offers to help Trickshot take them down. Trickshot doesn't trust her, but accepts her help anyway because he doesn't have much of a choice.
Between saving his grandfather and figuring out who is friend and who is foe, Trickshot has a lot on his plate. But that is nothing in comparison to the shocking revelations that await him within the mysterious island of Iconia itself.