第 1 季，第 5 集: Rex has built a ditch that goes right through Zerby Town. Zack thinks it’s great, but Zerbies might need a way to cross over the ditch so they don’t keep falling in, so they set out to make a bridge. But they soon learn that making a bridge isn’t easy, and they are going to have to try, try again to get it just right. Axle and Zack discover a meadow that they’ve never come across before. Axle wants to build a race course so he and the other racer Zerbies can have fun driving really fast. But when the first one is too simple and the next too complicated, Axle realizes he needs to try, try again and find something in-between. Zack wakes up to find the road to his garage is gone. He bounces down the hill and finds he can’t get back into his garage. The construction Zerbies say they'll have his road fixed by the next day. Zack doesn't mind, thinking it'll be fun to camp outside with Lily. But when it looks like rain, the Zerbies need to figure out how to stay dry.