In response to the devastating floods and heavy rainfall experienced in Cambodia in late September 2020, caused by tropical storms Nangka and Saudel, Save the Children, funded by ECHO, Save the Children Korea (SCK) and the organisation’s Children’s Emergency Seed Fund (CSF) implemented a multi-sectoral project in in Thmar Kaul and Moung Reussei districts of the worst-hit province of Battambang in partnership with World Vision (WV), Hagar International and Komar Rikreay Association. The project aimed at supporting the immediate life-saving basic needs of 3,667 households through the provision of unconditional cash transfers, improved access to safe drinking water, sanitation, and hygiene practices, as well as reestablishing a decent, clean, and safe learning environment for boys and girls from late November 2020 to March 2021. Throughout the Action, Save the Children and project partners integrated Mental Health and Psychosocial Support (MHPSS), COVID-19 Risk Communication and Community Engagement (RCCE), and child protection messaging through awareness-raising and community outreach to mitigate the risks of COVID-19, child protection issues and mental distress.