The First Episode Mood and Anxiety Program (FEMAP) was developed for youth with mood and/or anxiety concerns in London, Ontario, to provide early intervention for these disorders, similar to the first-episode psychosis programs across Ontario and Canada. The logic and causal models of the pathway to and through FEMAP are described and inclusion/exclusion criteria are delineated. Results of the process evaluation of the model and preliminary data from a treatment-effectiveness evaluation and ongoing cost-comparison evaluation are provided. Several characteristic quotes from youth utilizing the service are included, as is an overview of utilization statistics. Challenges and lessons learned are conveyed.