After the hectic events of Invincible Vol. 4: Head of the Class, Mark - a.k.a. Invincible - while continuing to deal with the loss of his father, finds himself face to face with piles of villains ad the worst conflict of all: teenage love! Collects Invincible #20-24, plus Invincible #0. (W) Robert Kirkman (A/CA) Ryan Ottley