Hayato’s father arrives not a moment too soon, and through the Cross Combination, the two merge into the E5 Cross 500. Unleashing the power of the Super Grand Cross, Seiryu counters with the Hell Grand Cross. With only enough power to unleash a single shot, the Ultra Evolution Institute launches a plan to supply the Shinkalion with auxiliary power… at the cost of depleting every system in the Institute! Failure will mean the loss of the entire Institute, and the escape of the Black Shinkalion. Is the Black Shinkalion truly invincible?