Cochise shares troubling news with Anne that will test both her medical and leadership skills, whilst elsewhere Anthony's mental stability and loyalties are brought into question. Meanwhile, a desperate Pope takes things into his own hands.

The 2nd Mass leaves Chinatown en route to what they hope will be the final Espheni battle. Along the way, they encounter a deranged and desperate gunman who takes Weaver hostage. Meanwhile, Tom sets off to rescue Hal from Pope and his dangerous group of survivors.

With Lizzie still on the run, Sarah finally persuades her boss to go public about Lizzie’s disappearance, then makes a series of discoveries.

Gordon & Bullock look into the thief behind the robberies of various bank branches in Gotham.

Chaos erupts at the GCPD, sending Gordon for the culprit behind the mass takeover.

Captured by the rebels, Neville faces personal and professional jeopardy, while Rachel struggles to restore the power and her relationship with Charlie.

Another betrayal pushes Monroe to the edge, while Rachel sets off on a dangerous quest to restore the power before Monroe triggers a nuclear device.

Cochise shares troubling news with Anne that will test both her medical and leadership skills, whilst elsewhere Anthony's mental stability and loyalties are brought into question. Meanwhile, a desperate Pope takes things into his own hands.

The 2nd Mass leaves Chinatown en route to what they hope will be the final Espheni battle. Along the way, they encounter a deranged and desperate gunman who takes Weaver hostage. Meanwhile, Tom sets off to rescue Hal from Pope and his dangerous group of survivors.

Lyta and General Zod come up with a plan to stop Brainiac, while Seg must decide if he's willing to make the ultimate sacrifice in service of the greater good of Kandor.

With Lizzie still on the run, Sarah finally persuades her boss to go public about Lizzie’s disappearance, then makes a series of discoveries.

As Gotham falls into complete anarchy, a team of unlikely heroes steps up to save it.

Jeremiah warns Gordon of more destruction to come, while Barbara rallies together a team and Bruce comes to terms with the future.

Lyta and General Zod come up with a plan to stop Brainiac, while Seg must decide if he's willing to make the ultimate sacrifice in service of the greater good of Kandor.

Captured by the rebels, Neville faces personal and professional jeopardy, while Rachel struggles to restore the power and her relationship with Charlie.

Another betrayal pushes Monroe to the edge, while Rachel sets off on a dangerous quest to restore the power before Monroe triggers a nuclear device.

Injured, Tom takes refuge with a unique family who has distanced themselves from the fight, giving him a glimpse of life without war. Meanwhile, the 2nd Mass locates an Espheni device that could be a linchpin to winning the war... if they can figure out how to use it.

The 2nd Mass arrives at a safe haven - a functional military base run by Weaver's old colleague and flame, Captain Katie Marshall. As the two groups make plans for the final assault on the Espheni, the 2nd Mass begins to realise that things aren't exactly as they seem.

When the past catches up with Miles and Monroe in the form of a mutual heartthrob, all hell breaks loose.

Miles remains wary as Neville claims to be fighting for the same cause; and the gang makes a daring river rescue, while Rachel and Aaron are captured by militia.

Alex contacts the police with critical information about a new attack planned for that day, but Commander Francis warns the team against placing too much trust in him.

As widower Gary struggles to connect with his 11-year-old daughter, Emma, a collision with the mysterious Mary might be a sign their whole universe is about to change - as long as Mary's dark secret doesn't tear them apart first.

After a near tragedy with Emma, Gary bumps into Mary again and shares his darkest moments as a father. He quizzes Mary on why she ran but all she will divulge is that she has baggage he will never understand. Mary disappears again, but Gary gives chase.

Sir Malcolm, Ethan and Sembene must deal with the aftermath of Vanessa's night of passion with Dorian when she is possessed by the demon that haunts them... and who has ties to the Master who controls Mina.

After a vision of the Grand Guignol, Vanessa, Sir Malcolm, Ethan, Dr. Frankenstein and Sembene explore an empty theatre - only to be confronted by their worst nightmares.