Building Bridges:Nick is in pursuit of finding out how to build a drawbridge. Float Your Boat: When Nick and Sally’s boat sinks, they need to build another one.

Accidents Happen: Sally destroys Nick’s model of a mountain.Making Waves: Nick discovers that Sally can’t hear him when he yells from his bedroom window.

Fact & Friction:Sally loses her slidiness. Pulling Together: The kids want to get a trunk up into the treehouse.

Play Pall: Nick unintentionally loses Sally’s bouncy ball. Shadow Play: Nick and Sally are having a sleepover in the treehouse and Nick is startled by a shadow.

Mirror Mirror: Nick and Sally are in the treehouse making funny faces. Oppositted Attract: Nick gets some new train cars for his train set.

Talents of Balance:Nick is trying to learn how to ride his bike. The Search for String: Nick and Sally need a strong piece of string to pull their train.

Gravity Drop: Nick's favourite flyer gets stuck in the tree. Who Can See the Wind: Sally wants to fly her kite but can’t seem to work out the timing to get the wind right.

Go With The FLow: Nick and Sally are frustrated by a puddle.Nicks Crickets: Nick wants to create a new home for the cricket in their backyard, but the cricket won't go in.

Design Time: Sally is trying to make a vase for her mothe. A Prize Surprise: The kids are creating a game that involves "fishing" for prizes.

Going Going Gong: Sally is playing a song on an instrument made up of different things in the Treehouse. Clever Levers:The kids need to move a big rock in their backyard.

You're It: Sally keeps getting found when they play Hide and Seek. Holes: Sally loses her special bead in the sandbox and they can't find it.

Bump Bump Bump Around: Nick's magic trick causes his toy car to disappe. Snow Difference: The kids want to make a great snowman.

Bubble Trouble: The kids are making bubbles and want to save one for Sally's mom. All Sorts of Things:Nick and Sally can't agree on the "right" way to sort their toys.

Good Vibrations: Nick and Sally are playing musical instruments and notice that Fish's water is rippling. Cause nd Effect: Nick's glass falls over without anyone touching it.

Smart Move: Nick and Sally's soccer game is obstructed by a large log.Simpy Simpe: Nick's new plane is flying well but is a little dull so the kids add buttons and glitter.

Enough is Enough: Sally thinks that the three stick she has aren't enough to make anything. Back on Track: Nick drops the mail bag into his train set.

Curious Minds: Nick and Sally wonder if they can walk on a cloud. Mind to Change: Sally is convinced that a tall thin glass of juice holds more than a short wide glass.

The Big Pictures: Nick and Sally don't understand why one toy car goes faster than another. Treehouse handshake: Sally invents a secret treehouse handshake.

Batteries Not Included: Nick and Sally are disappointed when their toy's battery runs out of power. Checking the Boxes: Sally and Nick have wrapped Father's Day gifts.

Hard Weigh:Sally wants to make a perfect mobile. The Song Flower Solution: Nick and Sally are trying to build a sandcastle but the sand is either too dry or too wet.