The Black Shinkalion is trapped in the Ultra Evolution Institute’s underground test site. Ryuji holds him off while Hayato waits for his father to arrive, but the Black Shinkalion transforms into Berserker Mode. As the Black Shinkalion uses the unique special abilities of each of the Shinkalions against Ryuji, Ryuji desperately tries to endure the battle. Will he – and the structural integrity of the Institute itself – survive the onslaught of Berserker Mode?