Zerby Bridge

Zack and Rex are exploring when they come across a small stream. They decide to try to cross the stream, and they think back to a floating log bridge they took to get across the lake. They make a floating log bridge but when Zack gets on the bridge the current of the water pushes the bridge down the stream. They try, try again, this time to make a bridge that won't move. A bridge of dirt! But when Rex pours in a load of dirt - it just gets washed away. Rex and Zack know there's a way to solve the problem, but they have to but their hoods together to figure it out. Rex realizes that if they make a log bridge that is above the water, then it won't get washed away and they can cross. No sooner have they made the bridge than Rex is in the water with his life-jacket, trying it out from below as well.