Based on a novel by Nicholas Sparks, author of "The Notebook".

Special Forces Army Sergeant John Tyree (Channing Tatum) is home on a two-week leave from Germany when he meets Savannah Curtis (Amanda Seyfried) after he diving into the ocean to retrieve Savannah's purse that had fallen off the pier. John is smitten by Savannah and falls in love at first sight. Savannah, a college student on spring break, is helping build a house for Habitat for Humanity and when John joins up to help a budding romance occurs, and Savannah falls deeply in love with John. As she is about to go back to college, she promises to write John overseas during the next 12-months until he returns to her after completing his enlistment but their love is put to the test when John re-enlists after the 9/11 attacks.