British marathon swimmer and world record holder Beth French sets out to swim across seven of the world's most dangerous sea-channels – an extreme challenge called Oceans Seven – and do it in record time: within one year. Driven by her desire to set an example for her autistic son and to overcome a life-long, debilitating illness, Beth travels to far-flung corners of the world confronting hypothermia, sharks, jellyfish, wild weather and mind-numbing fatigue, as well as her own inner demons. But, in an unpredictable and emotional climax, Beth’s yearning to conquer the open sea comes into heart-rending conflict with a mother’s dreams for her son.
