Curious George gets into trouble when he boards a dump truck and spills a load of sand in the road but redeems himself when the sand blocks the getaway of jewelry thieves.

Ted, the explorer with a large yellow hat, is good friends with Bloomsberry. Bloomsberry runs a natural history museum. His greedy son, Bloomsberry Junior, wants to tear down his dad's museum and put a parking garage in its place, but the elder Bloomsberry is convinced that a spectacular new exhibit could save the museum from the wrecking ball. Ted heads to Africa on an expedition to find some special artifacts that will keep his friend in business....