Overseer's Most Wanted

 is a quest in the Fallout 4 add-on Vault-Tec Workshop.

Detailed walkthrough
This 'quest' is given through the Vault-Tec Population Management System, wich allows, apart from other things, to track your companions by marking them as quest objectives. Once you activate a marker for a companion, this quest will begin, ending once you find them. This is particularly helpful for tracking down companions you have 'misplaced' in your travels. You can activate more than one marker at a time.