Metamorpho returns and helps protect Gotham from high tech criminals.
Six months after the blackout, DA Harvey Dent has been elected to put a stop to Batman. Meanwhile, Batman is framed for an attack on Mayor Marion Grange.
Batman races to save the city from Ra's al Ghul, but finds himself opposed by his arch-villains when Ra's releases them from Blackgate Villain to hunt the Caped Crusader down. Meanwhile, Katana must choose whether to kill Alfred and free her father's soul, or let the former agent live.moreless
Batman must team up with fellow prisoner Silver Monkey to escape the League of Assassins. Meanwhile, Ra's al Ghul reveals the truth to Tatsu about Alfred's involvement with her father's death.
Ra's al Ghul uses the mind-controlled Jason Burr to steal the Ion Cortex from Wayne Industries and plunge Gotham City into darkness.
Magpie breaks out of prison and goes on a rampage, determined to kill Batman's new partner Katana and make herself his sidekick.
Cat fears Vincent must die in order for Gabe to be stopped in the Season 2 finale.
Gabe tries to woo Cat by taking her on a romantic date.
After receiving inside information from Jason, Miles and Monroe head to Austin to try and sabotage the Patriots' plans. Aaron becomes concerned over Priscilla's odd behavior.
Rabbit is back with a small army, meaning Lucas and Carrie must fight for their lives. Back in Banshee, Rebecca proves her loyalty to Kai.
Carrie's marriage is put under further strain, while she and Lucas must prepare for an inevitable showdown. All is not looking good for Kai, Burton tries to identify and silence traitors, but Alex makes a vow to ensure Kai stays behind bars. Meanwhile, Job's trip to priest has consequences and the Banshee deputies are getting restless.moreless
While Lucas finds a way of getting Proctor, Emmett is targeted for revenge by Sharp and his skinheads.
While Lucas is looking for a way to take Proctor down, once and for all, Alex's future as Chief is decided by the council.
Gordon and Deva find that they need Carrie in their lives and Rebecca receives a lesson in loyalty from proctor. Meanwhile, Lucas Jason's past catches up with him.
In the hope of shedding more light on the murder, Lucas visits a strict Amish schoolteacher, while Siobhan and Emmett find Chayton more difficult to deal with than expected. Meanwhile, Proctor attempts to make peace with Alex and Rebecca tries to deal with being rejected by her parents.moreless
Lucas and his team must deal with the leader of the Kinaho tribe, Chayton Littlestone, when a murder creates tension between them and the Amish. Meanwhile, Lucas must deal with an unwelcome visitor and Carrie welcomes an unexpected one.moreless
Alex knows that if he does not recover the stolen money, his power and influence will greatly diminish and Proctor asks Lucas for a favor in return. Meanwhile, Siobhan receives an unwelcome visitor and Carrie must find a new home after being rejected by her husband and daughter.moreless
Lucas and Carrie are interrogated by the FBI after their shoot-out with Rabbit, while Gordon must come to terms with his wife's betrayal and Deva's shoplifting. Meanwhile, Proctor tries to persuade Rebecca to return and a robbery turns into a dangerous high-speed chase.moreless
Castle and Beckett work the murder case of a famed relationship therapist. While it first appears that client secrets may have been the motivating factor, a rare valuable object discovered in the victim's possession makes the case much more complicated.moreless
Monroe continues to be useful but is captured by The Patriots and sentenced to death.
While Batman trains Katana in how to use her instincts, Professor Pyg and Mr. Toad launch a new series of crimes on behalf of animal kind.
Batman and Katana partner up to investigate a break-in at a CRC facility, and discover that Anarky plans ton unleash a toxin on Gotham City that turns humans into rampaging monsters... and Lady Shiva is willing to help him do it.moreless
Cypher, a part-robot villain with powers of mind control, is seeking the Ion Cortex.
A reluctant Lt. Gordon turns to Batman and his new ally, Katana, when Barbara is kidnapped.
A date with Bethany Ravencroft turns into disaster for Bruce when he discovers that it's a trap to let the League of Assassins recover the Soultaker Sword.
A security guard is exposed to toxins which transforms him into a creature capable of transforming his body into any element.