Well, you’re not really stranded, it’s just that Bklyn bound 2,3,4 trains are not stopping at Bergen Street, Grand Army, or Eastern Parkway. You can leave the Slope, it’s just difficult to return from Manhattan. And if you’re expecting guests let them know that they can’t get out at these Slope stations. They’ll have to go to Franklin Avenue and circle back.

Check the service advisories at the MTA website to verify this.