This is another movie I haven't seen in years, although it was last broadcast on AMC. (Despite the setting, it was filmed on the California coast.) Unfortunately, they have not said when, or if, they plan to re-air it.
The story line is quite true-to-life, insofar as historical fiction can be. The number of non-Jewish volunteers helping the Haganah during the Jewish struggle against the British mandate was quite amazing, and they did so for a variety of reasons, from a sense of justice, to Zionist motives, to a desire to get a 'lick in' at England.
British imperial duplicity was so accurately depicted here, that, when the movie was released, the British government protested that it slandered Her Majesty's government. Methinks they didst protest too much.
In reality, there were Brits in the Mandatory Administration who favored the Jewish struggle for an independent homeland, as there were those who favored the Arabs, but most saw it as a foreign posting in their careers, a job to be done fairly, but always with an eye to Britain's interests, even as they protested that they were acting on behalf of the 'natives'.
A complex time, reduced to a movie whose verisimilitude is striking. The Haganah exploits depicted, such as the blowing up of all bridges (not that there were that many) at the borders of Mandatory Palestine, and the announcement of the High Commissioner's replacement (before he learned of it) did happen.
This is the earliest movie about the Ha'apalah, the illegal immigration into Mandatory Palestine before the independence of the State of Israel. Other movies set in the same time and place are Kirk Douglas' "The Juggler" and "Cast a Giant Shadow".
I can only hope it becomes available on video or CD, as I would like to see it again.