The proposed project is an implementation-effectiveness randomized trial of a person-centered collaborative care model for patients with serious mental illness and new cancer. The BRIDGE NET intervention is theoretically informed, pragmatic, and delivered virtually by an interdisciplinary team and includes early psychiatry consultation, integrated oncology and mental health treatment planning and regular patient outreach to adddress barriers to care. The BRIDGE NET intervention addresses the unique needs of patients with mental illness and cancer. To increase the reach of specialty cancer and mental health care, there is a critical need for interventions that can be delivered virtually. This work has can inform the standard of care for patients with serious mental illness and cancer and lay the groundwork for future multi--site trials.