After Lena divulges Brainiac's plans to the Daily Planet, Harley, Clayface, Bane and Frank try to take him down with an original musical.

The team gains a surprising new addition in the wake of a devastating loss. Meanwhile, as Ivy and Harley set out to bring the murderer to justice, Bane must protect Goldie and the other school kids from citywide destruction.

As Harley and Ivy attempt to save Metropolis from complete destruction, Bruce, the Joker and Lois form an unexpected alliance.

Harley, Ivy and Sharon team up with Brainiac to save the universe from Lex and Lena's total domination.