12 Days of Terror is a 2004 television film directed by Jack Sholder and starring Colin Egglesfield, Mark Dexter, Jenna Harrison, and John Rhys-Davies. Based on a true story, it revolves around the 1916 Jersey shark attacks, in which a great white shark begins a series of attacks that takes place of the course of 12 days in New Jersey. It premiered on Animal Planet, and later on The Discovery Channel.
http://cinematicdiversions.com/12-days-of-terror-2004-review/