Having been shipwrecked in Liverpool Bay, our hero, a sea captain, reaches the shore - and finds himself in the twelfth century on the territory of the kingdom of England. There is a civil war going on there, which historians will call Anarchy. This is the era of knights, but not the kind he imagined them to be, but uneducated, rude, cruel. To survive among them, you must be able to stand up for yourself. And then there is the sea, which helps those who are devoted to it.