After his brother’s aircraft carrier is destroyed by a mysterious dirigible in the closing days of WW2, a conceited fighter-pilot leads a squadron of misfits to intercept the craft before it reaches its next target: London.

The particulars of the weapon or vehicle that killed his brother can be cut from the logline - the plot is about the MC seeking revenge and preventing others from diening.? What made this interesting, for me anyhow, was that he leads a squadron of misfits -? his challenge is two-fold stop the killing aircraft, and control a bunch of loose cannons.

Why not imbue the aircraft's description with mystery, and leave the details for the synopsis.

My try:
After his brother's ship was drowned by a mysterious aircraft in WW2, a conceited fighter-pilot must lead a squadron of missfits to intercept the aircraft before it reaches London.

A dirigible in World War II? ? In the closing days when by that time the Allies had complete mastery of the air space on the Western front? ?How historically credible is that?

Is this is a hybrid action-fantasy that requires the audience to suspend disbelief that it could have actually happened? ?Or an action movie that can pass with the appearance of historical similitude ?-- ?it could have happened?