This is a situation; not a story. You have the first sequence of an 8-sequence feature.
How will they cope with the situation? What is/are the goal/s that will drive this film?
And how do the twins differ in character? Otherwise there would be no reason for a dual-protagonist film.
The setup is strong, with classic heist-and-flight bones and a clear setback structure: the brothers steal, they flee, they discover loss waiting for them.
The two-protagonist choice may work dramatically if the estrangement gives them an internal arc to play against the external hunt.
Where the logline gets uncertain: we know what’s happened to them, but not what they DO about it. “Hoping to rebuild their lives” is internal, and after the triple discovery the brothers become targets rather than agents.
“A city that no longer has a place for them” is the kind of theme line that sounds good but tells us little and “biracial” is doing work only if the brothers’ mixed heritage is central to the syndicate’s hunt or to the New York they’re returning to; if it’s flavour, replace it with a word that names a psychology.

This is a fresh and highly dramatic premise. Excellent! The two protagonists makes it complex, but not impossible.

The structure works: two protagonists, a catalyst, an action, a conflict, a theme. But “unwillingly tethered” is a little clunky as an adverb-plus-adjective pair; “tethered against their will” or just “tethered” reads cleaner.

“Search for redemption and peace” is the theme rather than something we can watch; if both ghosts are chasing an internal state, we don’t get a visible goal to follow.

The character descriptions tell us their armies but nothing about who these men are; what kind of soldier each one was would tell us how the bickering plays.

The genre stack reads overdetermined (primary and secondary, three or four labels), and a single tonal cue inside the logline would do the work without needing the disclaimer below.

But the story is genuinely fresh: enemy soldiers who killed each other on Guadalcanal becoming tethered ghosts to a shared bloodline they didn’t know they’d share is a strong premise, and the bickering across decades has real comedy potential alongside the drama. What’s missing is the specific stake. Why are they bound to him? What happens if they fail? And what makes the union “impossible”? A concrete stake and a concrete reason would replace the abstract “search for redemption” with something we can watch.