Reveille

Reveille is a quest in Fallout 4. It is initiated upon seeing The Prydwen flying above the Commonwealth after exiting Fort Hagen during the quest Reunions.

If you have started to work for Danse before exiting Fort Hagen during Reunions, this quest will not start.

Quick walkthrough
Step 1: Investigate the Brotherhood of Steel airship

Step 2: Proceed to Cambridge Police Station

Detailed walkthrough
Head towards Boston Airport and speak to any member of the Brotherhood of Steel, after they will tell you to speak to Paladin Danse at Cambridge Police Station. Upon arriving at Cambridge Police Station the quest will complete.