Following His First Steps

Following His First Steps is an overseer quest and the first part of the A Settler Needs Your Help multi-stage questline in Fallout Shelter.

Walkthrough
Fight through several rooms of raiders to the last room of the 5th and final floor and find some settlers. Question the settlers about Preston Garvey's whereabouts and then leave. Optionally, one can kill the raider boss occupying the 3rd floor.