Maurice Elvey (Director)
Richard Dix
Richard 'Mack' McAllan
Leslie Banks
Frederick 'Robbie' Robbins
Madge Evans
Ruth McAllan
Helen Vinson
Varlia Lloyd
C. Aubrey Smith
Lloyd
Basil Sydney
Mostyn
Henry Oscar
Grellier
Hilda Trevelyan
Mary
Cyril Raymond
Harriman
Jimmy Hanley
Geoffrey McAllan
George Arliss
Prime Minister of Great Britain
Walter Huston
President of the United States
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An engineer leads the building of a trans-Atlantic tunnel linking Britain and the United States.
