This impressive, big budget French production plunges the viewer deep into the highly-charged underwater world of the submarine crew, combining the claustrophobic atmosphere of Das Boot with the nerve-shredding action sequences of The Hunt For Red October.
Lead actors Francois Civil (As Above, So Below), Omar Sy (Jurassic World) and Mathieu Kassovitz (The Fifth Element) are terrific, as the sub crew desperately attempting to prevent an international catastrophe, despite being only 'small cogs in a big machine'. The plot twists and turns like an eel, and the sophisticated military hardware is stunningly realised.
Out now on Digital and available on DVD 30th December. Watch the new TV spot at the link above.