A Norwegian family vacationing on La Palma faces disaster when a young researcher discovers alarming signs of an imminent volcanic eruption.
On a quest to find out what happened to his missing brother, a scientist, his nephew and their mountain guide discover a fantastic and dangerous lost world in the center of the earth.
Alex, Marty, and other zoo animals find a way to escape from Madagascar when the penguins reassemble a wrecked airplane. The precariously repaired craft stays airborne just long enough to make it to the African continent. There the New Yorkers encounter members of their own species for the first time. Africa proves to be a wild place, but Alex and company wonder if it is better than their Central Park home.