Kiera and Carlos investigate a series of mysterious murders in which victims have been drained of endocrine fluid only to discover that the crimes were committed by Liber8 in an effort to save Travis, their leader. Kellog tries to make a truce with Kiera by delivering her a gift, one that could cost her and Carlos their lives and will lead to Kellog’s expulsion from Liber8.

Kagame's return begins with a reset of Liber8’s agenda, away from violence and towards blending into the community. But there may be a glitch – there is the possibility that if their ancestors living in this time are murdered, they might cease to exist. A test of this theory is devised with Kiera and her grandmother as the guinea pigs.

The high-stakes Union Election gives Kiera her first taste of contemporary political intrigue. But issues of trust and loyalty come up for Kiera as evidence points to Carlos in the death of an investigative reporter. Kiera will learn firsthand the lengths a person will go to get elected.

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 and Carlos discover that a Juror on Julian's trial has been compromised and must race to protect his family from a Liber8 plot. Alec is torn between telling the truth at his brother's trial or protecting his mother. Emily reveals she is more than just a pretty face.

Kiera investigates the mysterious disappearance of several deceased time travelers’ bodies while Alec is taken hostage by Garza on orders from his future self.

Alec’s mother is shot by a bullet meant for Julian while Dillon’s new Liber8 task force is put to the test when Kiera must decide how far she will go to stop Julian's murderous future.