12 Monkeys season 4 got off to a great start with a trio of episodes that revisited elements of the beginning of the series, and it continued to air its installments three at a time throughout the final run. Things wrapped up spectacularly well, and fans of time travel will no doubt be talking about this one for a long time to come. Here’s an archive of our reviews for each of the episodes as well as story descriptions.
12 Monkeys Season 4 Reviews & Episode Guide
12 Monkeys season 4 may have gone by very fast, but we reviewed each of the episodes along the way. Check out the episode titles and descriptions below, and click on the links to read reviews for the episodes (spoiler alert: there are lots of 5-star ratings).
The final conflict with the Army of the 12 Monkeys begins when the Witness returns to Project Splinter. (air date: June 15, 2018)
Travelers come face to face with ghosts from their past when they find themselves maneuvering around their own timelines. (air date: June 15, 2018)
Cassie travels back in time to confront a younger Olivia while Cole helps Jennifer find the meaning behind her final Primary vision. (air date: June 15, 2018)
Team Splinter goes back in time to the wild, wild frontier in search of a weapon to destroy the Witness. (air date: June 22, 2018)
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. (air date: June 22, 2018)
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. (air date: June 22, 2018)
Jones sends Hannah back in time to 2007 on a personal mission that could be the key to everything. (air date: June 29, 2018)
Everything changes when the team finally climbs the steps… and rings the bell in the Middle Ages. (air date: June 29, 2018)
The beginning of the end as Cole and Cassie embark on their final mission. (air date: June 29, 2018)
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. (air date: July 6, 2018)
12 Monkeys Season 4 Cast News
The first bit of casting news to come in from the set of 12 Monkeys season 4 was that Conleth Hill, known for his role as Varys on HBO’s Game of Thrones, joined the cast for the final season of the show. His role carried him through only two episodes in Night 1, but the news was reminscent of the casting of Hannah Waddingham, also a GoT vet, in season 3.
Hill played the role of Bonham, an Interpol officer in our present day whose ancestors passed down a relic that is of great importance to the time travel cycles that have been revealed during the course of the show. With the global pandemic right around the corner, Bonham doubts the truth behind the inherited item, and he struggles with his sense of duty and his eroding faith.