Zedd & Rita finally succeed in bringing the Hydro Hog to Earth, where he proceeds to drain the planet of all its water! Do the Alien Rangers stand a chance against their greatest enemy in a world that's out of their element? Meanwhile, Young Aisha arrives in Africa searching for the final sub-segment of the Zeo Crystal. She meets a young girl called Tanya and learns of a crippling famine affecting the land. And beneath the Command Center, Rito & Goldar reach the end of their journey.