The Riddler and the Penguin are reunited, as are Bullock and Gordon. But not every reunion is a happy one.
Penguin deals with Sofia's betrayal. Jim works on figuring out the true identity of Professor Pyg.
Someone's killing cops, putting pig's heads on their bodies, so Dt. Gordon and Cpt. Bullock chase down leads the hard way: by fist.
Bruce searches for answers about the embalmer's knife. Penguin and Sofia have a meeting.