The story sets off introducing the characters Scoot and Sully (14 and 19) sailing on a boat called the "Sea Dog".
Sully goes to man the wheel and Scoot goes down to make sandwiches. While Scoot is down there, a Rogue Wave forms up and turns the boat upside down. Scoot gets knocked out and Sully gets worried because she is trapped inside and is not with him outside the boat.
While Scoot is knocked out, Sully desperately tries to open a window the punching it. He then realized, that might only make it worse. So Sully, sat there until Scoot eventually woke up. When Scoot woke up she banged on her side of the window to let Sully know that she was alive.
Scoot tries to find different ways to get herself out from inside the boat. She ended up using wrenches to undo each dog bolt from the window.
Scoot gets herself out of the Sea Dog and finally sees her brother again. Sully is relieved that Scoot made it out. They ended up getting picked up by a rescue boat.