New mom Hallie is devoted to her baby, who had a heart transplant when she was born. Hallie is thrilled when she makes a new friend in Megan, but Hallie's life takes a sinister turn as danger seems to follow her every move.
When a group of marine biologists crash land in the Bermuda Triangle, they realize they have stumbled into the lost city of Atlantis. But they quickly discover the city isn't friendly, and its humanoid inhabitants are planning worldwide domination using the piles of weapons and technology that have fallen through the Triangle over the centuries.
A series of escalating incidents around the world lead to greater and greater conflict, placing the superpowers at one another's throats. Armies march, bombs rain down, soldiers storm the beaches. One family is caught up in the ever-growing conflict. Can they survive as total war is declared and nuclear weapons are unleashed?
