Sky, falling back into the role of loner more now that he's been overlooked at being chosen as the Red Ranger, refuses to join in any of the teams' activities, and repeatedly argues with Jack during battle. His temper is only made worse when Jack and Bridge are given new super charged bikes, while he's not! Meanwhile, Gruumm and his minions scheme to steal a truckload of diamonds in hopes of converting them into a new source of energy. Will Sky's confliction with Jack end giving the Troobians what they want? (thetvdb.com)