Curious George visits a museum with a class of schoolchildren and causes much excitement by climbing up onto a dinosaur skeleton.

Monkey and Cake are normally good friends, but today Cake is building a no-Monkey fort--until Monkey teaches him a lesson about being alone and he realizes that forts (and other things) are much better when they are shared.

"George is curious about all the field day Summer Games, but what sporting event will he compete in? Every year, the town has a Summer Games field day, and George wants to join in on the fun, especially if the prize is a medal! But what is the perfect Summer Games event for a little monkey? When George finds a sport that he loves and is a natural at, he must practice, practice, practice. With some teamwork and cheering on the contestants, George is...

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.

Enjoying gymnastics class so much, George, Allie, and Bill want to practice every day and decide to turn the backyard into a gym.

Monkey has a big box, which he tells Cake has a cat inside, but only when the box is closed; Cake suggest that maybe it is a dinosaur instead, and the two friends puzzle over how they can solve the problem of finding out what is in the box, if it is always empty when opened.

Separated from the man in the yellow hat while at a Christmas tree farm, Curious George ends up at a hospital where he delights the child patients with his own brand of tree trimming.

Curious George, the mischievous monkey, and his friends celebrate Valentine's Day with decorating, baking, card making, and some unexpected hilarity.