After accidentally ruining his friend's soccer game, Curious George enrolls in a soccer camp where he learns about the rules of the game and makes some mischief for the team.
While on a field trip to a fire station with Mrs. Gray's class, Curious George goes off on his own and is soon at the scene of a fire, where he finds a way to be helpful.
In this, the original book about the curious monkey, George is taken from the jungle by the man in the yellow hat. and the newly-captured monkey gets him into continual trouble.