Whatever Floats Your Boat/Building Bridges - S3.E1

Nick is in pursuit of finding out how to build a drawbridge. In Spansylvania, they meet a dragon who's in pursut of them - and along the way they find out that some materials are better suited for bridges than others. / When Nick and Sally's boat sinks, a trip to Floating Island helps them discover that along with needing the right material, you also need to make the shape of your boat float.