Skyland Season 1 Episode 3 - The Great Wall Episode Title:The Great Wall.Episode Description:An old friend of the Vector's sends news to Puerto Angel - he may have a lead on Lena and Mahad's mother. They travel to Ningxia, a Chinese block, where they find a Sphere invasion in progress and are captured. In jail, they are introduced to the Vector's friend, Master Hailong Zalo, also a powerful Seijin. In a daring escape, Zalo psychically bonds with Lena to give her a telepathic message from her mother, in turn giving her enough power to defeat the invasion and escape with Mahad.