The Best Episodes Written By Simon Barry

A mysterious nun makes contact with the OCS, while Adriel proposes a partnership to the pope. Lilith turns to an unexpected source for help.

After the Order sends out an urgent call, Beatrice and Ava connect with old friends in Madrid and stop by a museum. Jillian investigates an anomaly.

As a bizarre plague sweeps the city, Ava uncovers new revelations about Miguel -- and Adriel's methods. Lilith explores new possibilities.

Seeking Lilith's whereabouts, the sisters and Miguel visit Jillian. An unnerving discovery upsets Camila. Conflict erupts over Adriel at the conclave.

Ava and Beatrice jump into action when they meet an ally eager to take down a self-proclaimed prophet and his followers. Tragedy strikes at the convent.

The Order and their allies prepare for a showdown against Adriel at his new cathedral, but learn their adversaries have been making plans of their own.

After an intense battle, Ava's halo saves a life, while one of Adriel's followers has a crisis of faith. Camila finds herself behind enemy lines.

Ava visits the other realm and returns with a new plan to end Adriel's unholy charade -- but it will require superhuman strength and painful sacrifices.

Kiera races to rescue Alec from himself and preserve her own chance of getting home. Alec must make a difficult decision between solving Kiera's dilemma or his own.

Kiera and Carlos's reunion is a bumpy one as they attempt to thwart Liber8's brazen hijacking of a prison transfer. Meanwhile, Kellog approaches Alec with an enticing partnership proposition. The young genius is tempted, but will it lead him down a dark path?

Confused but excited by her newfound abilities, Ava soon realizes she's in over her head, but her need for a helping hand may be a blessing in disguise.

"Do not be afraid of what you are about to suffer. I tell you, the devil will put some of you in prison to test you, and you will suffer persecution for ten days. Be faithful, even to the point of death, and I will give you life as your victor's crown." In shock over the contents of the tomb, Ava no longer knows what — or who — to believe as she tries to divine the true history of the halo.

Kiera resurfaces after the mayor is killed in a brazen assassination. She reunites with Carlos to solve the murder and also tries to reconnect with Alec, who has changed since reading the message from his future self.

Kiera and Liber8 join forces to stop a power-hungry Alec; Kiera and John Doe realize their relationship is doomed; Scar Alec sacrifices his hard-won desire for a simpler life.

Kiera and Alec risk everything to stop the future soldiers.

Kiera risks everything to stop Alec from altering history in his quest to save Emily, but can the mysterious group Kiera aligned herself with be trusted?

Vanessa and Axel lead the others in the hospital's last stand against a siege by Julius and his vampire soldiers. Later when Dmitri's vampire 'Death Squad' arrives, it looks like civil war is brewing among the two vampire factions.

While Kiera investigates the two Alecs in one timeline, the mayor is kidnapped by a reunited Liber8. Carlos struggles with the reality shattering truth of Kiera’s predicament.

Vanessa and the group take shelter in Susan's family farm, where drastic action is taken against Sam; Rebecca's latest experiment to create Daywalkers fails, and Dmitri's patience grows thin.

Kiera and Carlos, reeling from a shocking loss, hunt down a ring of enigmatic high-tech thieves, even as a handsome, yet distant amnesiac begs for help in discovering his identity.

In the days leading up to "The Rising," Vanessa is attacked and left for dead by an intruder. When Doc discovers anomalies in Vanessa's bloodwork, Axel and the Marines come to retrieve the body, only to become marooned in the hospital when all hell breaks loose outside the building.