Awaiting the arrival of a fugitive, a ruthless bounty hunter holds hostage the patrons of a sleazy bar but soon discovers the imminent arrival of another fugitive: a killer with advanced mental powers from an alternate reality.

Nice suggestion. My use of 'another' is ambiguous. I meant 'one more' and not 'instead of'.

"A bounty hunter holds bar patrons hostage in order to trap a fugitive but when a killer with superpowers from an alternate reality also shows up the hunter becomes the hunted".

Like that as a logline twist: the hunter becomes the hunted. (Maybe someone wants to collect a bounty on him.)

Like that as a logline twist: the hunter becomes the hunted. (Maybe someone wants to collect a bounty on him.)