Based on the memoir by Helen Macdonald, H is for Hawk follows Helen (Foy), who, after the sudden death of her father (Gleeson), loses herself in the memories of their time birding and exploring the natural world together, and navigates her profound loss by training a wild goshawk named Mabel. But as she teaches Mabel to hunt and fly free, Helen discovers how deeply she has neglected her own emotions and life. What begins as an act of endurance transforms into an intimate journey of resilience and healing.