In the year 3000 from the hell-break a homeless ex-soldier takes up an escort mission and receives as payment powerful weapon, with which he’ll battle against the Empire chasing them and deliver his clients to safety.

I am going to attempt to write a logline based on several of these logline attempts:
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“After dimensional boundaries fail, a sentient ferret hires a gruff mercenary to ?escort her family across the wasteland to safety, but are perused by an ancient evil who wants a powerful artifact they have in their possession.”