In our world, this day in 1908 was marked by the fall of the Tunguska meteorite. And in this, a monstrous experiment of unknown forces connected two geological epochs through time, laying the mysterious Fault line across the ocean expanses. The gunboat of the Russian navy with a group of scientists on board crosses the edge of worlds and finds itself in the distant past, when giant lizards inhabited the planet. The expedition participants are expected not only to fight with ferocious monsters, but also the first imperialist war in the new world for territories - with the team of the English cruiser...