Overview
An engineer leads the building of a trans-Atlantic tunnel linking Britain and the United States.
Cast
- Richard Dix as Richard 'Mack' McAllan
- Leslie Banks as Frederick 'Robbie' Robbins
- Madge Evans as Ruth McAllan
- Helen Vinson as Varlia Lloyd
- C. Aubrey Smith as Lloyd
- Basil Sydney as Mostyn
- Henry Oscar as Grellier
- Hilda Trevelyan as Mary
- Cyril Raymond as Harriman
- Jimmy Hanley as Geoffrey McAllan