A vigilante, one hero who goes by Mysterion, experiences a life changing event that causes his life and ways of heroism to turn against himself and his friends. He will stop at nothing until his rage is complete. His friends must save him before he kills everyone that he loves. Is it too late for his friends or will they get to him just in time?

With the initial rap battles done and the test thought to be done, Boyfriend and Girlfriend are continued to be sought out by many other people. Familiar faces, blasts from the past, and new people across time and space are showing up to battle or to perhaps befriend the couple. The aftermath of the rap battles is here. Who will win? Who will die? Who will become friends or foe?