第 4 季 共 11 集
播出时间：2018年6月16日
第 1 集 The End
播出时间：2018年6月16日
The final conflict with the Army of the 12 Monkeys begins when the Witness returns to Project Splinter.
第 2 集 Ouroboros
播出时间：2018年6月16日
Travelers come face to face with ghosts from their past when they find themselves maneuvering around their own timelines.
第 3 集 45 RPM
播出时间：2018年6月16日
Cassie travels back in time to confront a younger Olivia; Cole helps Jennifer find the meaning behind her final Primary vision.
第 4 集 Legacy
播出时间：2018年6月23日
Team Splinter goes back in time to the wild, wild frontier in search of a weapon to destroy the Witness.
第 5 集 After
播出时间：2018年6月23日
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.
第 6 集 Die Glocke
播出时间：2018年6月23日
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.
第 7 集 Daughters
播出时间：2018年6月30日
Jones sends Hannah back in time to 2007 on a personal mission that could be the key to everything.
第 8 集 Demons
播出时间：2018年6月30日
Everything changes when the team finally climbs the steps... and rings the bell in the Middle Ages.
第 9 集 One Minute More
播出时间：2018年6月30日
The beginning of the end as Cole and Cassie embark on their final mission.
第 10 集 The Beginning (1)
播出时间：2018年7月7日
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.
第 11 集 The Beginning (2)
播出时间：2018年7月7日
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.
