In this 3rd installment Alex’s interest for Ninja missions is starting to vanish. He’ll rather spend his time with his friends and Checkered Ninja feels he is overlooked and is eager to engage in a new mission. The result of this is that Alex, by accident, ends up having a conflict with Marco, the bad boy boyfriend of Jessica, entangling him in a conflict he hasn’t asked for and he is pressured by Checkered Ninja to defend himself. The problems do not get less as Alex becomes friends with the new girl in the class, Emily making Jessica extremely jealous. On top of that it also turns out that his nemesis, Phillip Eppermynt is still alive – and wants revenge.