Apple TV+ has announced the renewal of its acclaimed spy series 'Slow Horses' for a sixth season, following the conclusion of Season 4. The upcoming six episodes will see Gary Oldman's character, Jackson Lamb, and his team embroiled in a high-stakes game of retaliation led by MI5 deputy boss Diana Taverner. The series, based on Mick Herron's novels, has gained popularity since its debut in 2022, and filming for Season 5 has already been completed. Showrunner Will Smith hinted at the potential for a prequel focused on Lamb's character, though he expressed concerns about losing the character's mystery. Additionally, Herron mentioned the possibility of adapting his latest book, 'The Secret Hours,' into a limited series, which would deepen the narrative universe of 'Slow Horses.' The show's success continues to grow, promising more espionage thrills in the future.