Complex sentence: They decide to take on Najaf and beats him with covered faces but after to show heroism Majid threw away some money with his driving license which gets them a payback from Najaf.
Split into simpler sentences: They decide to take on Najaf and beat him with covered faces. After beating Najaf up, in order to show some heroism Majid threw away his driving license along with some money which gets them a payback from Najaf.