A unique story told over two distinct halves, "Summer" follows Sam, a man drawn to a mysterious island off the British coast where he encounters a group of islanders set on preserving their traditions at any cost. "Winter" follows Helen, a strong-willed outsider who comes to the island seeking answers, but whose arrival precipitates a fractious battle to decide its fate.

Femi is a British boy of Nigerian heritage who, after being fostered in rural Lincolnshire, moves to inner-city London to live with his birth mother. Struggling with the unfamiliar culture and values of his new environment, teenage Femi has to figure out which path to adulthood he wants to take.