Cpt. Gordon finds new threats to Gotham City, as Bruce realises Ra's is back.
Ra's al Ghul is resurrected. And boy, is he unhappy.
Jerome starts a plan to gather people in Gotham, where he and the villains will release their deadly laughing gas toxin.
An escape at Arkham. Mad Hatter tricks. Barbara's post-Ra's al Ghul effects.
One hard night in Gotham.