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Slow Horses (Season 4)

Created by Hampshire-born Will Smith (Veep), and co-written by British screenwriters Morwenna Banks, Mark Denton, Ed Docx, Sean Gray and Jonny Stockwood, this BAFTA-winning show returns for a fourth season. UK actors Gary Oldman, Jack Lowden and Kristin Scott Thomas return, joined by new British faces Joanna Scanlan, Tom Brooke and James Callis. Co-produced by See-Saw Films and 60Forty Films.

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Synopsis

After a bomb goes off in a busy shopping centre in London, MI5 agents begin to investigate. Simultaneously, former spymaster David (Jonathan Pryce) - the grandfather of River Cartwright (Jack Lowden) - is showing early signs of dementia, causing personal turmoil while also raising the question of what to do when a protector of state secrets can no longer be trusted to keep them.