Andrew Hayes

Terrible! watched the first episode then gave up. Apart from the soundtrack the rest was boring typical BBC left wing romanticism.

Decent but totally unbelievable and unrealistic Sunday drama, the inside of the sub is the size of WW2 battleship lol.

The first three episodes are ok worthy of a mid week watch, now moved on to episode 4 with the new characters which is frankly a totally ridiculous and unbelievable plot.

Absolute rubbish! I was expecting great things but this was a wet politically correct piece of drivel with some of the worst "special effects" to grace the small screen since a 1970's Doctor Who episode.