Tukuma Monster who wants to conquer the dark world is planning to launch a village attack. Ultraman Tiga and the villagers worked together to defend the attack. In the village appeared a fighter who possesses the Sparklance sword which made Ultraman Tiga felt familiar towards it. Sparklance, when he holds the sword, it will transform him into Ultraman Tiga, but in a shorter form. Because of that, he cannot fight the monsters. It is because the power if not enough, it will not let him stauy in Ultraman form for long. Tukuma monster is awaken, it attacks the villages as planned…Ultraman Tiga is not the successor of the Great Power of Light? Who can it be?