The coming-of-age journey of 5 teenage boys who leave their small, Canadian town behind and risk skating across Lake Ontario to New York on the coldest day of the year.

T.S. Spivet lives on a ranch in Montana with his mother who is obsessed with the morphology of beetles, his father (a cowboy born a hundred years too late) and his 14 year-old sister who dreams of becoming Miss America. T.S. is a 10 year-old prodigy with a passion for cartography and scientific inventions. One day, he receives an unexpected call from the Smithsonian museum telling him that he is the winner of the very prestigious Baird prize for his discovery of the perpetual motion machine and that he is invited to a reception in his honor where he is expected to give a speech. Without telling anyone, he sets out on a freight train across the U.S.A. to reach Washington DC. There is also Layton, twin brother of T.S., who died in an accident involving a firearm in the family's barn, which no one ever speaks of. T.S. was with him, measuring the scale of the gunshots for an experiment, and he doesn't understand what happened.

The successful children's writer Claire Holloway is troubled by scary nightmares and is under psychological treatment. While working out watching television, she sees the landscape of the Rose Marsh Farm in the Westmoreland County, and she notes that the farmhouse is linked to her nightmares. She decides to spend her vacation in the farm, which is located nearby a swamp, and she is haunted by the ghosts of a little girl and a teenage boy inside the house. She is befriended by the local publisher and historian Noah Pitney but after a sequence of disturbing visions, she decides to contact the paranormal consultant Geoffry Hunt. Together, they investigate the mystery and disclose a tragedy that happened in the farm about twenty years ago.