Skyland - Episode 4 - Mogura

Puerto Angel suffers through a severe drought that ends up dangerously dehydrating Lena. The pirates investigate a remote block of ice that the Vector believes will supply them with much needed water. Upon arriving, they find that the Sphere has struck first, the pirates board the deserted drilling station in hopes of finding some water the Sphere may have left behind. There, they battle the Mogura, a huge spider-like robot that has turned from a simple tool into a deadly threat to any human that confronts it. Thankfully, the pirates (including a weak Lena) manage to fight the creature off, collect the vast water supply left behind and save the people of Puerto Angel.