O2 is the gripping narrative of Shraddha, a child prodigy who eyes the impossible as a doctor to give a fresh breath of life to life. This is driven by the sudden demise of her father which has affected her intensely. Her groundbreaking research using the oxygen drug, 02, holds the potential to extend the revival period for clinically dead cardiac patients. Haunted by the shadows of childhood trauma and battling anxiety attacks that distance her from love, Shraddha faces an unexpected hurdle when she is denied permission for human testing by the medical council. Will Shraddha be able to overcome personal strife and professional restrictions and achieve a medical breakthrough by her brave pursuit of scientific progress against all odds? Or will her aspirations wither and bring ignominy to her and will she have to bid farewell to the milestones she aspired to achieve? 'O2' offers a captivating exploration of these questions. The audiences can expect a delightful blend of scientific intrigue, innocent love and unexpected twists as the story unfolds and transfixes them.