Skyland Season 2 Episode 1 Shadows of the Past

Oslo has spirited away in a water carrier for a secret mission. He is very ill and knows of only one place where he can be healed. Stumbling upon the Sphere craft, Mahad and Lena engage it, when they are attacked. Dodging the patrollers, Mahad and Lena dock in the carrier to hide when they discover Oslo, close to death. He demands that they take him to Vandergaard and his twin brother Darius. Oslo must be recharged simultaneously with his brother or he will die. Knowing they have to keep him alive in order to find their mother, Mahad and Lena agree to help but inform Cortes to follow. Oslo attempts to double cross everyone and capture Lena and Mahad who manage to escape but just barely.