When hiro discovers a broken lighter in an empty field, it becomes the catalyst for a life-changing event. this seemingly ordinary object is actually the gold lightan, a fallen robot from the robot dimension. as the world faces imminent danger from ivalda the great's evil robots, gold lightan transforms into the golden warrior to defend earth. alongside hiro and his gang, the one pack rangers, they unite in their mission to safeguard our planet against ivaldas sinister plans and his armored minions.