A tough young girl lives with her aging grandfather near a cove on the coast of Cornwall. She supports herself and him by gathering seaweed to sell as fertilizer. A cocky young neighboring boy decides to help her with the work.

Three men at three different times in history come to Mow Top hill in search of sanctuary from their troubles. A Roman soldier, a medieval rebel and a 1970s young man. Somehow they seem linked through an energy within the hill and an axe. Is history doomed to repeat itself or can loving another person free them?