Their father summons them all and tells them all to enlist and fight for Poland, threatening to kill any that betray the cause.
He steals the uniform, impersonating a soldier in the town to find the nun he encountered earlier during the assault.
After seeing some captured rebels being marched off, he finds a room full of officers and lobs a grenade inside.
Several Polish soldiers have stolen a cannon and brought it to the barricade, helping the insurgents win the battle.
In the next major battle, barrel bombs and an ambush help them to repel a German attack.
The rebels, in a last ditch effort, blow up what remains of the Basista home as a diversion to allow them to escape across the river.
Having regrouped in a warehouse in town, the German army has surrounded their position and they realize they have failed.