The healthcare system has an inconsistent record of ensuring patient safety. One of the main factors contributing to this poor record is inadequate interdisciplinary team behavior. This article describes in situ simulation and its 4 components--briefing, simulation, debriefing, and follow-up-as an effective interdisciplinary team training strategy to improve perinatal safety. The purpose of this manuscript is to describe the experiential nature of in situ simulation for the participants. Involved in a pilot study of 35 simulations in 6 hospitals with over 700 participants called, "In Situ Simulation for Obstetric and Neonatal Emergencies," conducted by Fairview Health Services in collaboration with the University of Minnesota's Academic Health Center.