In this episode of 'Conversations in Lung Cancer Research,' A/Prof Mel Moore sits down with A/Prof Fiona Hegi Johnson, a radiation oncologist at the Peter McCallum Cancer Center and senior research fellow at the University of Melbourne. Fiona shares her journey into radiation oncology, highlighting her career progression, the impact of serendipity, and the importance of mentors. They discuss technological advancements in the field, the role of multidisciplinary teams, changes in lung cancer treatments, and clinical challenges. Fiona offers insights into balancing clinical work with research and provides advice for early-career professionals in the field.