The Diplomat · S4 · E2
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.
About this episode
A shocking security breach sends the administration into crisis as Hal assumes new duties. Trowbridge launches a manhunt, and Kate looks to the future.
Season 4
1Windsor
49 minOct 15, 2026★ 8.5
On an unplanned stopover at Windsor Castle, Kate grows wary of Hal and Grace's dynamic as she tries to contain the fallout from their covert actions.
2Redcoats
43 minOct 15, 2026★ 8.3Now viewing
A shocking security breach sends the administration into crisis as Hal assumes new duties. Trowbridge launches a manhunt, and Kate looks to the future.
3The Typo
58 minOct 15, 2026★ 8.2
A budgetary snag threatens to torpedo negotiations, with costly implications for the US. Stuart and Eidra get personal as they weigh their next move.
4Pagliacci
53 minOct 15, 2026★ 8.3
After Hal drops a bombshell that throws the UK alliance into jeopardy, Kate faces mounting pressure to control the damage by any means necessary.
5Special Envoy
54 minOct 15, 2026★ 9.0
Kate contends with her complicity in a stunning political shake-up, while a disenchanted Todd explores his options across the pond.
6The Dead
54 minOct 15, 2026★ 9.4
When a dangerous adversary makes its move, Grace issues a hard-line threat to the prime minister, forcing Kate to reckon with her role as the messenger.
7Phony Negroni
53 minOct 15, 2026★ 8.9
Personal and political lives collide — and damaging secrets surface — when Kate and Hal join Grace and Todd in Italy ahead of the G7 summit.
8Warships
61 minOct 15, 2026★ 9.5
At a meeting of world leaders, a diplomatic breakdown edges the US closer to an international crisis — and compels Kate to make a seismic decision.
Guest stars
