my wife and i have watch this whole series at least three time . i can not imagine how it could be well . this isn not the complete history of wwiino library could hold such a historybut it be the best summary of that history . lot of detail and lot of personal story and and still keep the overall picture in view . olivier narration be excellently write and and of course and superbly give . the interview be from all side and except the russian and because the producer be not allow to talk to many russian . it be very much worth own this complete program on dvd . we treasure our copy . the producer do an excellent job of provide picture and action where there be almost none extant in any archive represent there be almost no film of convoy and submarine battle and for instance and but still and the episode on this subject be very well do .