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Claire Foy and Christian Cooke star in Peter Kosminsky's four-part drama serial. Eighteen-year-old Erin sets out on an emotional journey when she retraces her grandfather's footsteps.

About the Show

Claire Foy and Christian Cooke star in Peter Kosminsky's four-part drama serial. Eighteen-year-old Erin sets out on an emotional journey when she retraces her grandfather's footsteps.

  • The Promise: Len

    The Promise

    In the final episode, Erin refuses to abandon her quest to find Mohammed's family, even though it takes her on a hazardous journey into Gaza.

    Len's diary records how, in 1947, Jews take to the streets celebrating the British decision to withdraw from Palestine. A crucial vote at the UN means their own state is finally within their grasp.

    In Haifa the mass exodus of Arabs has started and Len fears for the safety of Mohammed, his son Hassan, and their family. He exhorts them to abandon their home and leave the city by boat. Mohammed reluctantly agrees and Len takes them to the port but in the chaos at the dock gates, something unexpected happens. In an effort to make things right, Len makes a promise to Mohammed: a promise that will ultimately determine the fate of both their lives.

  • The Promise: Omar and Erin

    The Promise

    Len is lying in hospital, being treated for his injuries after his unit has been under attack in Haifa. When he recovers, he goes to see Mohammed and spends some time teaching his son Hassan geometry. Len also visits his Jewish lover Clara before rejoining his unit.

    The soldiers prepare for a highly sensitive military operation against the Irgun, but their secret plans are betrayed, with appalling consequences for Len and his men.

    Reading these dramatic events, Erin is even more determined to resolve the mystery surrounding the fate of Len and his charwallah friend Mohammed.

    In search of Mohammed's family, she travels alone to the West Bank. But once there she arouses suspicion and is arrested by Israeli soldiers.

  • Len and Clara

    The Promise

    The episode begins in 1940s Palestine, where Len meets Abu-Hassan Mohammed, an Arab charwallah working for the British Army. Len is appalled to see how Mohammed is treated by some of the soldiers as he attempts to serve tea, so he intervenes to discipline them. A friendship grows between the two men after the incident.

    In modern Israel, Erin is experiencing the aftermath of the attack on a café by a Palestinian suicide bomber. She decides to leave Israel at the earliest opportunity, but first she reads the end of Len's diary and is shocked by what she discovers. Despite the trauma of the café bombing, Erin resolves to stay in Israel while she delves deeper into her grandfather's story.

  • Claire Foy as Erin

    The Promise

    Claire Foy and Christian Cooke lead an international cast, including Itay Tiran, Haaz Sleiman, Ali Sulaiman and Perdita Weeks, in Peter Kosminsky's new four-part drama serial.

    Just as 18-year-old Londoner Erin sets off to spend summer in Israel with her best friend, Eliza, she unearths an old diary belonging to her seriously ill grandfather, Len. Intrigued by the life of this old man she barely knows, she takes the diary with her, and is stunned to learn of his part in the post-WWII British peace-keeping force in what was then Palestine.

    Left to her own devices when Eliza begins National Service in the Israeli army, Erin witnesses the complexities of life - for both Jews and Arabs - in this troubled land. And as Len's story comes to life from the pages of the diary, Erin discovers the disturbing truths about his time in Palestine and the atrocities he witnessed in the 1940s.

    Retracing Len's steps in modern-day Israel, Erin sets out on a heart-breaking journey in an effort to understand and fulfil a promise made by her grandfather over 60 years ago.

The Promise synopsis

Claire Foy and Christian Cooke star in Peter Kosminsky's four-part drama serial. Eighteen-year-old Erin sets out on an emotional journey when she retraces her grandfather's footsteps.

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