When Jack and Annie head to the tree house, Morgan is not there. Instead, they find Terry the dog staring at them. They have to gather four special things in four adventures to free Terry from a spell. This time the adventure is set on the Titanic, the infamous English ocean liner.

The Titanic will sink at 2:20am but when Jack and Annie reach the ship, it is already 12:20am. Will they be able to find the special thing in two hours? If the liner starts sinking, how can they save themselves?