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?

Sam's Birthday puts Kiera on the path to an emotional meltdown which triggers an internal diagnostic within Kiera's CMR that forces her to deal with her loss or lose her tech abilities. Meanwhile, Kiera becomes the target of a department mole hunt, when Dillon is ousted and Escher installs Nora Masters as his puppet.

Kiera must use her knowledge of the future to stop a serial killer while keeping a curious Carlos in the dark about the truth behind her uncanny insights.

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 has to solve a series of Liber8 connected bank heists and discovers the robbers are controlled by a recently escaped Lucas. Carlos’ new and unwanted knowledge about time travel begins to affect his work.

Kiera confronts uncomfortable truths while paired on an investigation with Dillon. Julian puts himself in the spotlight by exposing a corporation's dirty deeds. Alec deals with the pressures of his new role at Piron and an uncomfortable secret revealed by Carlos.

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 Alec risk everything to stop the future soldiers.