The cry of the devil

It all started as a fun adventure story of two adventurers - fearless and dashing Irishman Flynn O Flynn and his flippant, funny brother-in-law Sebastian, out of pure mischief turns to hell the life of the government of the African colonies of Germany.
But very soon the fun turned into a tragedy.
The war began and the Germans ruthlessly destroyed the home and family Flynn and Sebastian.
Now those two have nothing to lose.
Now they don't care - what are the risks and how many lives are put on the map.
They only want to fight and take revenge. To retaliate brutally, ruthlessly but fairly.