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 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?

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 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?

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.

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.

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.