Silent Pirate and the Airship Armada

To ponies, who once called each other 'friend'. Two armies, led by mighty warriors. A fight to the death.

Silent Knight has strayed from the path of the valiant, the honourable.
He is an outcast.
Unnecessary.
Unwanted.

... And he has a bounty on his head.
Can the former house guard commander defeat his enemies, the unicorn hunters that pursue him, or will he fall and his loyal crew with him?