A group of teens against the world of an apocalyptic hell. There are struggles against other groups as well as in the group. Who will live and who will die? Promises are made, but will they be kept? Chloe goes through a bunch of inner conflicts as well as conflicts with her comrades. Will they be resolved? Friendships will be put to the test, and lives will be on the line. Living fight the dead, living fight the living, wars will happen. It's time to fight back to save all dear to you, or die.

Leo meets this girl called Chloe and basically it is love at first sight. A little while after they start dating the turtles find out that the kraang wants to eliminate Chloe. Chloe and her new friends try to find out why the kraang would want anything to do with her and they try to keep the city safe.