The Diplomat Season 4 Episode 2 — Redcoats

A shocking security breach sends the administration into crisis as Hal assumes new duties. Trowbridge launches a manhunt, and Kate looks to the future.

The Diplomat Season 4 Episode 2 (“Redcoats”) is episode 2 of 8 in Season 4 and first aired on October 15, 2026. It runs about 43 minutes. Directed by Alex Graves. Written by Debora Cahn. Guest stars include Penny Downie, Georgie Henley and Richard Dillane.