Episode Title:Best Friends Forever.Episode Description:During a storm, Piper is saved by another crystal expert like herself named Lark, and the two become best friends. However, during a recon mission to a Cyclonian crystal mine in the terra tundras , Piper discovers her new friend is Master Cyclonis in disguise, having infiltrated the Storm Hawks in the hopes of turning Piper to her side. Unable to do so, Master Cyclonis uses the mined crystals to turn an entire Talon squadron invisible. Using some unorthodox tactics, the Storm Hawks defeat their invisible assailants, while Piper defeats Master Cyclonis.