Introduction: The use of innovative strategies for teaching, such as flipped classroom and assembly line education, has become increasingly popular to engage learners. Residency education has been incorporating these methods to master content, develop critical skills, and improve professionalism.Methods: We created a three-part immersion experience to teach Emergency Medical Services (EMS) concepts to emergency medicine residents. Residents participated in a mass casualty incident (MCI) in which they were tasked to triage patients and allocate resources in a hospital to treat 11 victims properly. The second portion was to manage a cardiac arrest scenario in the field with the tools our EMS colleagues had available. Lastly, they were asked to create short, high-yield lectures about topics related to EMS.Results: Pre-and post-test surveys were used to assess the effectiveness of the experience in teaching residents core EMS topics. It was determined that residents not only felt more prepared for an MCI, but they also were more comfortable with their skills as a result of participating in this activity.Conclusion: Our study further highlights the benefits of non-traditional techniques in residency education. The use of immersion experiences was unique and overall a positive experience for learners. The techniques used in this activity allowed residents to gain confidence in more challenging topics for emergency physicians. This format could be applied to many more topics in the future as an innovative education technique.