A successful lawyer returns to his hometown for his mother's funeral only to discover that his estranged father, the town's judge, is suspected of murder.
Based on the real life story of legendary cryptanalyst Alan Turing, the film portrays the nail-biting race against time by Turing and his brilliant team of code-breakers at Britain's top-secret Government Code and Cypher School at Bletchley Park, during the darkest days of World War II.
When Matthew explores the 'spiral' in his grandmother's garden (a strange structure built by his late grandfather) he discovers an entrance into the magical world of 'the Shadows' where he meets his new Shadow friends, Yorrick and Alice, and begins his great adventure.
The ultimate X-Men ensemble fights a war for the survival of the species across two time periods as they join forces with their younger selves in an epic battle that must change the past – to save our future.