Around the 18th-century, a sea captain named Robert Walton sets sail on an expedition to the Arctic. Writing in a series of letters to his sister, he describes his journey. On the way, Walton and his crew spot a giant man on a dog sled, followed by another man on a sled, exhausted and near death from exposure. Walton rescues him and brings him onto his ship. The man introduces himself as Victor Frankenstein and tells the captain his story.