Present day, UK: A son flees his father?s wrath after his mother is accidentally killed but members of their martial arts family are driven to take sides and the inevitable showdown threatens to destroy them all.

If the secret is the inciting incident, then you should tell us what the secret is in the logline... That will be the 'hook' of your story.

Focus on the struggle that the son has vs the father, otherwise, this is just another martial arts fight movie.

Give us something about the time period this is set in. Is it present time or past? Where will the theater of combat take place and is there larger forces at work to mention?

Who is the main character and what do they want?