In a small town, high-school dean Alana and her vivacious teenage daughter Samantha plan a holiday concert to save the school with the help of the new maintenance man, Army veteran Johnny, and his quiet son Max. But when a car accident lands Sam in a life-threatening condition, Alana turns to Johnny for support, and Max makes a desperate decision that will forever bond their families together. All four must question their values about sacrifice, family, and love - and what it means to be thankful for another Christmas.

When a lifeguard catches wind of a dangerous anomaly off the coast of San Diego, she commissions a band of unlikely heroes to assist her on a suicide mission to save the west coast from total destruction.