The Brunswick Incident missions are set early in Season 1, after the events of Paul Revere. A nearly settlement has gone dark, so Runner Five needs to investigate!
The missions were originally released as time-limited missions to coincide with the release of Call of Duty: WWII which has a Nazi Zombies mode and were available from 3rd November 2017 to 6th December 2017. They were later re-released as The Brunswick Incident missions in November 2021.