Susan Clarkson (Melissa Joan Hart) agrees to go with Jason (Jonathan Brandis) and three other young crew members and deliver a 60-foot sailing yacht from San Diego to Vancouver to a potential buyer. However the over-anxious captain sails off course and the crew runs into some bad weather. While out at sea, the yacht sinks leaving the crew to fend for themselves against the merciless elements. All trapped on the yachts' dinghy, they find themselves without food, water or supplies and with sharks posing a constant threat to their survival.