Freak the Mighty starts with an introduction of Max, Freak (Kevin), Gram and Grim, and Freak's mom Gwen. This is the start of a new story!
(Person vs. Himself) Throughout the book, the main issue is Max trying to find his identity. At the start of the book it is said that Max didn't have a "brain" until he met Kevin.
Freak and Max get chased by Tony. D (Blade) and his gang during their watch to see the fireworks on the Fourth of July. By the end iconic duo, 'Freak the Mighty' is born for more adventures to come.
Adventures of Freak the Mighty
Killer Kane kidnaps Max and takes him to abandoned house. Max brings up how Killer Kane killed Max's mom (or Killer Kane's wife). Killer Kane attempts to choke Max but Freak comes in and saves the day.
After a long battle of Morquio syndrome, Freak finally passes away after having a seizure on his birthday. Max trying to avoid the situation, ends up skipping Freak's funeral.
After a whole year of neglecting the situation, Max finally takes the notebook Kevin gave him before passing away, and writes all the quests they had together.