Amidst the COVID-19 pandemic, Dr. Daniel Castro, a middle-aged virologist/epidemiologist who also is a climate change activist, discovers a life-saving method in managing severe and critical cases of COVID-19 infection as the whole world waits for a vaccine. He finds help from an old May-December affair flame Melissa del Rosario, a young TV reporter as they also struggle to recover from their broken-heartedness due to a third party.