Thomas and Cal went outside to play, and soon decided to start a project bringing chunks of wood over for building towers. They enjoyed the challenge for a while, dashing off to search for more chunks and delivering them back to the spot. Then, as you can see, it got goofy, and it’s delightful to see how in sync they were on the hilarity of knocking over the tower before they had even made it. Their goal moves from building a tower to building their friendship.