When all hope is lost, Cole must complete his cycle so that his younger self will one day arrive at the end with the answer.

The beginning of the end as Cole and Cassie embark on their final mission.

The final battle against the Witness as the fate of time and mankind hangs in the balance. All the pieces finally come together to mark the end of the beginning.

The final battle with the Witness begins.

Jones comes to the disheartening realization that time travel is humanity's true enemy and that as its architect she needs to be stopped, and so she sends Railly back to the year 2020 with orders to undo all of it.

Cole and Railly have finally found peace living in the past. When a mysterious woman with apocalyptic visions of the future tells Cole it's not over, he must do the unthinkable to save the world... and the woman he loves.

The reason why the Witness wants to destroy time and all reality is revealed.

Cole and Railly attempt to stop the final paradox in the past while Ramse, Jennifer and Deacon struggle to survive the apocalypse in a last ditch effort to find the Witness.

With the temporal facility on the verge of destruction, Cole and Jones find themselves in the middle of a coup. After a violent encounter ends in an unexpected tragedy, Cole is sent back to 1957 in a last-ditch effort to save humanity while the rest embark on a caravan across the apocalypse to find Titan -- the stronghold of the Witness.

Cole and Railly find themselves at opposite ends of an unspeakable decision. Jones grows suspicious while Railly turns to an emotional ally for advice. All hell breaks loose during a massive fire-fight.

A clue to breaking the cycle leads Cole and Cassie to the 1960s. Christopher Lloyd returns as Zalmon Shaw, a devoted follower of the Witness.

The team infiltrates a Nazi gala to steal an artifact known as 'Die Glocke'. Their operation comes undone when French Resistance interferes and an unexpected guest arrives.

Everything changes when the team finally climbs the steps... and rings the bell in the Middle Ages.

Ramse and Cole splinter to 2007 expecting either a trap - or a final chance to kill The Witness. But when Cole discovers a heartbreaking truth, he’ll discover that the mission was both.

With Cole dying from the effects of time-travel, Railly must find the one person who can save him.

Out of time and in need of answers, Jennifer and Deacon are sent to 1989 to steal the a sacred document. Can Railly and Cole get to the Word first before it reveals the one secret they want kept?

Cassie travels back in time to confront a younger Olivia; Cole helps Jennifer find the meaning behind her final Primary vision.

Cole and Railly attempt a final confrontation with their closest enemies, while Jones faces a new threat to all that she's accomplished.

Former friends, now enemies, race to find the Witness in 1904, who, at last, reveals his face.

Jones sends Hannah back in time to 2007 on a personal mission that could be the key to everything.

Cole, Dr. Railly and Aaron strive to stop the virus from being deployed as a bioweapon in Chechnya.

Cole splinters to Tokyo, 1987 in a last chance effort to stop the Army of the 12 Monkeys.

When Cole and Cassie are stranded in 1944, Jones must turn to the person she trusts the least to bring them home -- Ramse. For Ramse, this mission will give him a chance to atone for his sins -- but can he mend the broken relations between Cole and Railly? Meanwhile, Jones visits Old Jennifer Goines to explore the true nature of Time - and the Twelve’s method to destroy it.

Cole faces the Witness as Cassie's hallucinations evolve; deadly visitors from the past arrive when the time machine malfunctions and begins tearing apart time and space.

In the apocalypse of 2163, a desperate Cole searches for Titan. Meanwhile, a captive Railly is faced with an impossible choice as the 12 Monkeys await the arrival of The Witness.