Voltron, Defender of the Universe: Vehicle Voltron

Jeff leads his Air Team onto the surface of a mysterious planet, when an energy pulse in the atmosphere drains the power supplies of his entire crew. Cut off, he's ambushed by Zabar, and is helpless to protect his team. Back on the Explorer, they desperately search for a way to help without becoming disabled themselves. They need Jeff for Voltron, and a Robeast is on its way.