I have no idea why I wrote that like it's a kid's cartoon. Anyway, here we can see Black Mask firing a tommy gun at Batman who is swooping in using his grapple gun.
A better look at Black Mask and a couple of his goons.
The goons rushing into the fight.
Here we see Nightwing battling hand-to-hand with another of the Mask's thugs.
It appears that the warehouse is being used to illegally store guns.
Black Mask's view of Batman swooping in.
Another (slightly blurry, sorry) look at Nightwing.
And the main picture again.
Please comment, rate and enjoy!