It's 1940. German forces are prevailing over Allies across Europe. The crew of the Polish submarine, now serving in the Royal Navy, is waging a heroic fight against the invisible enemy.
Set in Szczecin, Poland, the series begins after the body of a young woman is discovered under the melting ice. It asks ‘Who was she? Why did she die? Who did she leave behind?
When their latest heist goes wrong, three older female burglars evade officials by hiding out in a nursing home — where they uncover a sinister secret.