"12 Monkeys" is a science fiction television series that premiered in 2015, inspired by the 1995 film of the same name. The show follows James Cole, a time traveler from a post-apocalyptic future who is sent back to the present day to prevent the release of a deadly virus that wipes out most of humanity. Throughout the series, Cole teams up with Dr. Cassandra Railly, a virologist, and faces various challenges as he navigates different timelines. The narrative explores themes of fate, memory, and the consequences of time travel, while introducing a complex cast of characters and a mysterious organization known as The Army of the 12 Monkeys.